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  <xsd:element name="GerdauGtlSpainSLMember" id="ggb_GerdauGtlSpainSLMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauInternacionalEmpreendimentosLtdaGrupoGerdauMember" id="ggb_GerdauInternacionalEmpreendimentosLtdaGrupoGerdauMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauAmeristeelCorporationAndSubsidiariesMember" id="ggb_GerdauAmeristeelCorporationAndSubsidiariesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauSteelIncMember" id="ggb_GerdauSteelIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ParaopebaFixedIncomeInvestmentFundMember" id="ggb_ParaopebaFixedIncomeInvestmentFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GtlEquityInvestmentsCorpMember" id="ggb_GtlEquityInvestmentsCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SiparAcerosS.a.AndSubsidiaryMember" id="ggb_SiparAcerosS.a.AndSubsidiaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauTradeIncMember" id="ggb_GerdauTradeIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BradleySteelProcessorsMember" id="ggb_BradleySteelProcessorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MrmGuideRailMember" id="ggb_MrmGuideRailMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauMetaldomCorpMember" id="ggb_GerdauMetaldomCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfMarketValueOfFinancialInstrumentsTableTextBlock" id="ggb_DisclosureOfMarketValueOfFinancialInstrumentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShortTermInvestmentMember" id="ggb_ShortTermInvestmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherCurrentAssetMember" id="ggb_OtherCurrentAssetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherNoncurrentAssetMember" id="ggb_OtherNoncurrentAssetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LoansAndFinancingMember" id="ggb_LoansAndFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebenturesMember" id="ggb_DebenturesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CapitalManagementRiskMember" id="ggb_CapitalManagementRiskMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetDebtToEarningsBeforeIncomeTaxDepreciationAndAllowanceCapitalManagementRisk" id="ggb_NetDebtToEarningsBeforeIncomeTaxDepreciationAndAllowanceCapitalManagementRisk" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TenOrThirtyYearBondsMember" id="ggb_TenOrThirtyYearBondsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauAcominasS.A.Member" id="ggb_GerdauAcominasS.A.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfTaxCivilAndLaborClaimsAndContingentAssetsAbstract" id="ggb_DisclosureOfTaxCivilAndLaborClaimsAndContingentAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfChangesInTaxLaborAndCivilProvisionsTableTextBlock" id="ggb_ScheduleOfChangesInTaxLaborAndCivilProvisionsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfNoncurrentRestrictedCashAndCashEquivalentsRelatedToTaxLaborAndCivilMattersTableTextBlock" id="ggb_ScheduleOfNoncurrentRestrictedCashAndCashEquivalentsRelatedToTaxLaborAndCivilMattersTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ICMSMember" id="ggb_ICMSMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CorporateIncomeTaxAndSocialContributionTaxMember" id="ggb_CorporateIncomeTaxAndSocialContributionTaxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LaborProvisionsMember" id="ggb_LaborProvisionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauAcosLongosS.a.AndGerdauAcominasS.a.Member" id="ggb_GerdauAcosLongosS.a.AndGerdauAcominasS.a.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauInternacionalEmpreendimentosLtda.AndGerdauAcosEspeciaisS.a.Member" id="ggb_GerdauInternacionalEmpreendimentosLtda.AndGerdauAcosEspeciaisS.a.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NoncurrentTaxRelatedRestrictedCashAndCashEquivalents" id="ggb_NoncurrentTaxRelatedRestrictedCashAndCashEquivalents" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="NoncurrentLaborRelatedRestrictedCashAndCashEquivalents" id="ggb_NoncurrentLaborRelatedRestrictedCashAndCashEquivalents" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="NoncurrentCivilRelatedRestrictedCashAndCashEquivalents" id="ggb_NoncurrentCivilRelatedRestrictedCashAndCashEquivalents" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="TaxCreditsAbstract" id="ggb_TaxCreditsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfTaxCreditsTextBlock" id="ggb_DisclosureOfTaxCreditsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfCurrentAndNonCurrentTaxCreditsTableTextBlock" id="ggb_DisclosureOfCurrentAndNonCurrentTaxCreditsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfEstimatesOfRealizationOfNonCurrentTaxCreditsTableTextBlock" id="ggb_DisclosureOfEstimatesOfRealizationOfNonCurrentTaxCreditsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfGoodwillBySegmentTextBlock" id="ggb_DisclosureOfGoodwillBySegmentTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UsefulLivesPropertyPlantAndEquipment" id="ggb_UsefulLivesPropertyPlantAndEquipment" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfGeneralInformationAboutFinancialStatementsAbstract" id="ggb_DisclosureOfGeneralInformationAboutFinancialStatementsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfEnvironmentalLiabilitiesTableTextBlock" id="ggb_DisclosureOfEnvironmentalLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherCurrentLiabilities.Member" id="ggb_OtherCurrentLiabilities.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherNoncurrentLiabilities.Member" id="ggb_OtherNoncurrentLiabilities.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxesPayableAbstract" id="ggb_TaxesPayableAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfTaxesPayableTextBlock" id="ggb_DisclosureOfTaxesPayableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfTaxesPayableTableTextBlock" id="ggb_DisclosureOfTaxesPayableTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PayrollChargesCurrentTaxesPayable" id="ggb_PayrollChargesCurrentTaxesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="StateValueAddedTaxCurrentTaxesPayable" id="ggb_StateValueAddedTaxCurrentTaxesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="TaxOnRevenueCurrentTaxesPayable" id="ggb_TaxOnRevenueCurrentTaxesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="FederalValueAddedTaxCurrentTaxesPayable" id="ggb_FederalValueAddedTaxCurrentTaxesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ValueAddedTaxAndOthersCurrentTaxesPayable" id="ggb_ValueAddedTaxAndOthersCurrentTaxesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="DisclosureOfEnvironmentalLiabilitiesAbstract" id="ggb_DisclosureOfEnvironmentalLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfEnvironmentalLiabilitiesTextBlock" id="ggb_DisclosureOfEnvironmentalLiabilitiesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DescriptionOfAccountingPolicyForFinancialLiabilitiesAndEquityInstrumentsPolicyTextBlock" id="ggb_DescriptionOfAccountingPolicyForFinancialLiabilitiesAndEquityInstrumentsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DescriptionOfAccountingPolicyForOtherCurrentAndNoncurrentAssetsAndLiabilitiesPolicyTextBlock" id="ggb_DescriptionOfAccountingPolicyForOtherCurrentAndNoncurrentAssetsAndLiabilitiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DescriptionOfAccountingPolicyForInvestmentsInEnvironmentalProtectionsAndEnvironmentalLiabilitiesPolicyTextBlock" id="ggb_DescriptionOfAccountingPolicyForInvestmentsInEnvironmentalProtectionsAndEnvironmentalLiabilitiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DescriptionOfAccountingPolicyForNewAccountingPronouncementsPolicyTextBlock" id="ggb_DescriptionOfAccountingPolicyForNewAccountingPronouncementsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ControllingShareholdersMember" id="ggb_ControllingShareholdersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfCurrentExpensesOfDefinedBenefitPlansExplanatoryTableTextBlock" id="ggb_DisclosureOfCurrentExpensesOfDefinedBenefitPlansExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfChangesInPlanAssetsAndPlanObligationsExplanatoryTableTextBlock" id="ggb_DisclosureOfChangesInPlanAssetsAndPlanObligationsExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfAmountsRecognizedAsActuarialGainsAndLossesInStatementOfComprehensiveIncomeExplanatoryTableTextBlock" id="ggb_DisclosureOfAmountsRecognizedAsActuarialGainsAndLossesInStatementOfComprehensiveIncomeExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfHistoricalActuarialRemeasurementsOfDefinedBenefitPlansExplanatoryTableTextBlock" id="ggb_DisclosureOfHistoricalActuarialRemeasurementsOfDefinedBenefitPlansExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfAllocationOfDefinedBenefitPlanAssetsExplanatoryTableTextBlock" id="ggb_DisclosureOfAllocationOfDefinedBenefitPlanAssetsExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfAssumptionsUsedToCalculateDefinedBenefitPlansExplanatoryTableTextBlock" id="ggb_DisclosureOfAssumptionsUsedToCalculateDefinedBenefitPlansExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DefinedContributionPensionPlanMember" id="ggb_DefinedContributionPensionPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RetirementAndTerminationBenefitLiabilitiesMember" id="ggb_RetirementAndTerminationBenefitLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NorthAmericanPostEmploymentDefinedBenefitPensionPlanMember" id="ggb_NorthAmericanPostEmploymentDefinedBenefitPensionPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CurrentExpensesOfDefinedBenefitPensionPlansAbstract" id="ggb_CurrentExpensesOfDefinedBenefitPensionPlansAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestCostOnUnrecoverableSurplusArisingFromNetDefinedBenefitLiabilityAsset" id="ggb_InterestCostOnUnrecoverableSurplusArisingFromNetDefinedBenefitLiabilityAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ReconciliationsOfPlanAssetsAndLiabilitiesAbstract" id="ggb_ReconciliationsOfPlanAssetsAndLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BrazilianPostEmploymentDefinedBenefitPensionPlansMember" id="ggb_BrazilianPostEmploymentDefinedBenefitPensionPlansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AmountsRecognizedAsActuarialGainsAndLossesInStatementOfComprehensiveIncomeAbstract" id="ggb_AmountsRecognizedAsActuarialGainsAndLossesInStatementOfComprehensiveIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherComprehensiveIncomeBeforeTaxGainsLossesOnRestrictionsOfDefinedBenefitPlans" id="ggb_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRestrictionsOfDefinedBenefitPlans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="HistoricalActuarialRemeasurementsAbstract" id="ggb_HistoricalActuarialRemeasurementsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanAssetsAbstract" id="ggb_AllocationForPlanAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanFixedIncomePercentage" id="ggb_AllocationForPlanFixedIncomePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanVariableIncomePercentage" id="ggb_AllocationForPlanVariableIncomePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanOthersPercentage" id="ggb_AllocationForPlanOthersPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanPercentage" id="ggb_AllocationForPlanPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanAllocationRangeForSharesPercentage" id="ggb_AllocationForPlanAllocationRangeForSharesPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanAllocationRangeForDebtSecuritiesPercentage" id="ggb_AllocationForPlanAllocationRangeForDebtSecuritiesPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AllocationForPlanAllocationRangeForAlternativeSecuritiesPercentage" id="ggb_AllocationForPlanAllocationRangeForAlternativeSecuritiesPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfAssumptionsUsedToCalculateDefinedBenefitPlansAbstract" id="ggb_SummaryOfAssumptionsUsedToCalculateDefinedBenefitPlansAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetPeriodicCostsOfPostEmploymentHealthCareBenefitsAbstract" id="ggb_NetPeriodicCostsOfPostEmploymentHealthCareBenefitsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FundedStatusOfPostEmploymentHealthBenefitsPlansAbstract" id="ggb_FundedStatusOfPostEmploymentHealthBenefitsPlansAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CivilProvisionsMember" id="ggb_CivilProvisionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxCreditsSocialSecurityFinancingMember" id="ggb_TaxCreditsSocialSecurityFinancingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxCreditsFinancingOfSocialIntegrationProgramMember" id="ggb_TaxCreditsFinancingOfSocialIntegrationProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxCreditsFederalValueAddedTaxMember" id="ggb_TaxCreditsFederalValueAddedTaxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxCreditsValueAddedTaxMember" id="ggb_TaxCreditsValueAddedTaxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxCreditsOtherMember" id="ggb_TaxCreditsOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxCreditsFinancingOfSocialIntegrationProgramAndOthersMember" id="ggb_TaxCreditsFinancingOfSocialIntegrationProgramAndOthersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfOwnershipOfSharesExplanatoryTableTextBlock" id="ggb_DisclosureOfOwnershipOfSharesExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BrazilianInstitutionalInvestorsMember" id="ggb_BrazilianInstitutionalInvestorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForeignInstitutionalInvestorsMember" id="ggb_ForeignInstitutionalInvestorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherShareholdersMember" id="ggb_OtherShareholdersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PurchaseOfTreasurySharesNumber" id="ggb_PurchaseOfTreasurySharesNumber" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInNumberOfSharesOutstandingThroughExerciseOfStockOptions" id="ggb_IncreaseDecreaseInNumberOfSharesOutstandingThroughExerciseOfStockOptions" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SharesIssuedPercentage" id="ggb_SharesIssuedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="EffectsOfChangesInOwnershipInterestsInSubsidiariesAbstract" id="ggb_EffectsOfChangesInOwnershipInterestsInSubsidiariesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PreferenceShareRightsExercisePeriodForPublicOffering" id="ggb_PreferenceShareRightsExercisePeriodForPublicOffering" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MandatoryMinimumAnnualDividendPercentage" id="ggb_MandatoryMinimumAnnualDividendPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DividendsAndInterestOnCapitalAbstract" id="ggb_DividendsAndInterestOnCapitalAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestOnShareholdersCapitalPaid" id="ggb_InterestOnShareholdersCapitalPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProfitLossAttributableToOrdinaryEquityHoldersAndPreferredShareHoldersOfParentEntityBasicAbstract" id="ggb_ProfitLossAttributableToOrdinaryEquityHoldersAndPreferredShareHoldersOfParentEntityBasicAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageOrdinarySharesAndPreferredSharesAndAdjustedWeightedAverageOrdinaryAndPreferredSharesBasicAbstract" id="ggb_WeightedAverageOrdinarySharesAndPreferredSharesAndAdjustedWeightedAverageOrdinaryAndPreferredSharesBasicAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfDetailedInformationAboutRevenueTableTextBlock" id="ggb_DisclosureOfDetailedInformationAboutRevenueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxesOnSales" id="ggb_TaxesOnSales" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="SalesDiscounts" id="ggb_SalesDiscounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ChangesInAssetsAndLiabilitiesAbstract" id="ggb_ChangesInAssetsAndLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfCurrentInventoriesTableTextBlock" id="ggb_DisclosureOfCurrentInventoriesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfAmountsToBeConsideredForDistributionAsDividendsExplanatoryTableTextBlock" id="ggb_DisclosureOfAmountsToBeConsideredForDistributionAsDividendsExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RestrictedSharesGrantedToKeyManagementPersonnelAbstract" id="ggb_RestrictedSharesGrantedToKeyManagementPersonnelAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfSignificantInvestmentsInJointlyControlledEntitiesTableTextBlock" id="ggb_DisclosureOfSignificantInvestmentsInJointlyControlledEntitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfTaxRateReconciliationTableTextBlock" id="ggb_ScheduleOfTaxRateReconciliationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauAcosLongosSaAndSubsidiaryMember" id="ggb_GerdauAcosLongosSaAndSubsidiaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauAcosEspeciaisSaMember" id="ggb_GerdauAcosEspeciaisSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DonaFranciscaEnergticaSaMember" id="ggb_DonaFranciscaEnergticaSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauCorsaSapiDeCvMember" id="ggb_GerdauCorsaSapiDeCvMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmpresaSiderurgicaDelPeruSaaSiderperuMember" id="ggb_EmpresaSiderurgicaDelPeruSaaSiderperuMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauGtlMexicoSaDeCvAndSubsidiariesMember" id="ggb_GerdauGtlMexicoSaDeCvAndSubsidiariesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SeivaSaFlorestasEIndustriasMember" id="ggb_SeivaSaFlorestasEIndustriasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauLaisaSaMember" id="ggb_GerdauLaisaSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SiparGerdauInversionesSaMember" id="ggb_SiparGerdauInversionesSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauAcominasSaGerdauAcosLongosSaAndGerdauAcosEspeciaisSaMember" id="ggb_GerdauAcominasSaGerdauAcosLongosSaAndGerdauAcosEspeciaisSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherTaxesMember" id="ggb_OtherTaxesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebenturesNumberIssued" id="ggb_DebenturesNumberIssued" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DebenturesNumberHeldInTreasury" id="ggb_DebenturesNumberHeldInTreasury" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauAcosLongosSaMember" id="ggb_GerdauAcosLongosSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherDemandsOfCivilNatureMember" id="ggb_OtherDemandsOfCivilNatureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProductsSoldPriceRiskMember" id="ggb_ProductsSoldPriceRiskMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RawMaterialsAndCommodityPriceRiskMember" id="ggb_RawMaterialsAndCommodityPriceRiskMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SensitivityAnalysisPercentageOfChangeAssumption" id="ggb_SensitivityAnalysisPercentageOfChangeAssumption" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SensitivityAnalysisInterestRateChangeAssumption" id="ggb_SensitivityAnalysisInterestRateChangeAssumption" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SensitivityAnalysisImpactOnIncomeStatementBasedOnChangeInAssumption" id="ggb_SensitivityAnalysisImpactOnIncomeStatementBasedOnChangeInAssumption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PreferenceShareRightsExercisePeriodForOfferingThatIsNotPublic" id="ggb_PreferenceShareRightsExercisePeriodForOfferingThatIsNotPublic" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfInvestmentsAccountedForUsingEquityMethodTableTextBlock" id="ggb_DisclosureOfInvestmentsAccountedForUsingEquityMethodTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsLineOfCreditFacilityMaximumBorrowingCapacity" id="ggb_IfrsLineOfCreditFacilityMaximumBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="IfrsLitigationStatusAxis" id="ggb_IfrsLitigationStatusAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsLitigationStatusDomain" id="ggb_IfrsLitigationStatusDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsPendingLitigationMember" id="ggb_IfrsPendingLitigationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsNumberOfOperatingSegments" id="ggb_IfrsNumberOfOperatingSegments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauSummitAcosFundidosEForjadosSaMember" id="ggb_GerdauSummitAcosFundidosEForjadosSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DiacoSaMember" id="ggb_DiacoSaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfChangesInAllowanceForInventoriesAdjustmentToNetRealizableValueTableTextBlock" id="ggb_DisclosureOfChangesInAllowanceForInventoriesAdjustmentToNetRealizableValueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CurrentBorrowingsAndCurrentPortionOfNonCurrentBorrowingsExcludingNotesAndDebentures" id="ggb_CurrentBorrowingsAndCurrentPortionOfNonCurrentBorrowingsExcludingNotesAndDebentures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="LongTermBorrowingsExcludingNotesAndDebentures" id="ggb_LongTermBorrowingsExcludingNotesAndDebentures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="BorrowingsExcludingNotesAndDebentures" id="ggb_BorrowingsExcludingNotesAndDebentures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NetRevenuePurchasesFromTransactionsWithRelatedParties" id="ggb_NetRevenuePurchasesFromTransactionsWithRelatedParties" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="GuaranteesGrantedAbstract" id="ggb_GuaranteesGrantedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DecreaseThroughInterestPaidOnLoansAndFinancing" id="ggb_DecreaseThroughInterestPaidOnLoansAndFinancing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseThroughInterestExpenseIncurredButNotYetPaid" id="ggb_IncreaseThroughInterestExpenseIncurredButNotYetPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ChangesInLiabilitiesArisingFromFinancingActivitiesCashTransactionsAbstract" id="ggb_ChangesInLiabilitiesArisingFromFinancingActivitiesCashTransactionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ChangesInLiabilitiesArisingFromFinancingActivitiesNonCashTransactionsAbstract" id="ggb_ChangesInLiabilitiesArisingFromFinancingActivitiesNonCashTransactionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfEmployeeBenefitPlansTable" id="ggb_DisclosureOfEmployeeBenefitPlansTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfEmployeeBenefitPlansLineItems" id="ggb_DisclosureOfEmployeeBenefitPlansLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeBenefitPlansAxis" id="ggb_EmployeeBenefitPlansAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmployeeBenefitPlansByTypeDomain" id="ggb_EmployeeBenefitPlansByTypeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PostEmploymentDefinedBenefitPensionPlanMember" id="ggb_PostEmploymentDefinedBenefitPensionPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ActuarialGainsLossesArisingFromExperienceAdjustmentsOnDefinedBenefitLiabilities" id="ggb_ActuarialGainsLossesArisingFromExperienceAdjustmentsOnDefinedBenefitLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ActuarialGainsLossesArisingFromExperienceAdjustmentsOnPlanAssets" id="ggb_ActuarialGainsLossesArisingFromExperienceAdjustmentsOnPlanAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ActuarialAssumptionOfMedicalCostTrendRatesNextYear" id="ggb_ActuarialAssumptionOfMedicalCostTrendRatesNextYear" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="ActuarialAssumptionOfMedicalCostTrendRatesRateOfDecline" id="ggb_ActuarialAssumptionOfMedicalCostTrendRatesRateOfDecline" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="TotalServiceCostsAndInterestCostsMember" id="ggb_TotalServiceCostsAndInterestCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CreditsOnInputsMember" id="ggb_CreditsOnInputsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NonApprovalOfCompensationOfCreditsOnInputsMember" id="ggb_NonApprovalOfCompensationOfCreditsOnInputsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SocialSecurityContributionsMember" id="ggb_SocialSecurityContributionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauInternacionalEmpreendimentosLtdaMember" id="ggb_GerdauInternacionalEmpreendimentosLtdaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SpecialAppealMember" id="ggb_SpecialAppealMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdministrativeCollectionMember" id="ggb_AdministrativeCollectionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SensitivityAnalysisPercentageAppreciation" id="ggb_SensitivityAnalysisPercentageAppreciation" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="SensitivityAnalysisPercentageDepreciation" id="ggb_SensitivityAnalysisPercentageDepreciation" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="PerpetuityGrowthRateMember" id="ggb_PerpetuityGrowthRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfLoansAndFinancingByCurrencyTableTextBlock" id="ggb_ScheduleOfLoansAndFinancingByCurrencyTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfInformationAboutGuaranteesGrantedTableTextBlock" id="ggb_DisclosureOfInformationAboutGuaranteesGrantedTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfChangesInLiabilitiesOfCashFlowFromFinancingActivitiesTableTextBlock" id="ggb_SummaryOfChangesInLiabilitiesOfCashFlowFromFinancingActivitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfReconciliationsOfAssetsAndLiabilitiesOfBenefitPlansTableTextBlock" id="ggb_DisclosureOfReconciliationsOfAssetsAndLiabilitiesOfBenefitPlansTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WithholdingIncomeTaxMember" id="ggb_WithholdingIncomeTaxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GoodwillDeductibilityMember" id="ggb_GoodwillDeductibilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InvestmentsAndWorkingCapitalAnnualReservePercent" id="ggb_InvestmentsAndWorkingCapitalAnnualReservePercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriod" id="ggb_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RestrictedSharesAndPerformanceSharesMember" id="ggb_RestrictedSharesAndPerformanceSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebtDebenturesAndLossesGainsOnFinancialInstrumentsNetMember" id="ggb_DebtDebenturesAndLossesGainsOnFinancialInstrumentsNetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsAccountingPoliciesAbstract" id="ggb_IfrsAccountingPoliciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="JuntosSomosMaisFidelizaoS.a.Member" id="ggb_JuntosSomosMaisFidelizaoS.a.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProfitLossAttributableToOrdinaryEquityHoldersAndPreferredShareHoldersOfParentEntityDilutedAbstract" id="ggb_ProfitLossAttributableToOrdinaryEquityHoldersAndPreferredShareHoldersOfParentEntityDilutedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetIncomeAvailableToCommonAndPreferredShareholdersAbstract" id="ggb_NetIncomeAvailableToCommonAndPreferredShareholdersAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageOrdinarySharesAndPreferredSharesAndAdjustedWeightedAverageOrdinaryAndPreferredSharesDilutedAbstract" id="ggb_WeightedAverageOrdinarySharesAndPreferredSharesAndAdjustedWeightedAverageOrdinaryAndPreferredSharesDilutedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageNumberOfSharesCommonAndPreferredSharesOutstandingAbstract" id="ggb_WeightedAverageNumberOfSharesCommonAndPreferredSharesOutstandingAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GerdauHungriaHoldingsLimitedLiabilityCompanyMember" id="ggb_GerdauHungriaHoldingsLimitedLiabilityCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TaxIncentivesReserve" id="ggb_TaxIncentivesReserve" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ProfitLossBeforeDividendsAndInterestOnCapital" id="ggb_ProfitLossBeforeDividendsAndInterestOnCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ProfitLossBeforeConstitutionOfInvestmentsAndWorkingCapital" id="ggb_ProfitLossBeforeConstitutionOfInvestmentsAndWorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="TaxProvisionsMember" id="ggb_TaxProvisionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DividendsDisclosureAbstract" id="ggb_DividendsDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LegalReserveAsPercentOfNetIncome" id="ggb_LegalReserveAsPercentOfNetIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestAndDividendsPaid" id="ggb_InterestAndDividendsPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DecreaseInEquityThroughAppropriationOfRetainedEarningsToReserves" id="ggb_DecreaseInEquityThroughAppropriationOfRetainedEarningsToReserves" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AppropriationOfRetainedEarningsAbstract" id="ggb_AppropriationOfRetainedEarningsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestOnCapitalPaidPerShare" id="ggb_InterestOnCapitalPaidPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DividendsPaidPerShare" id="ggb_DividendsPaidPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RepurchaseOfBonds" id="ggb_RepurchaseOfBonds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AmountByWhichUnitSRecoverableAmountIsBelowOrExceedsItsCarryingAmount" id="ggb_AmountByWhichUnitSRecoverableAmountIsBelowOrExceedsItsCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ProfitLossAttributableToEquityHoldersOfParentEntityIncludingDilutiveEffects" id="ggb_ProfitLossAttributableToEquityHoldersOfParentEntityIncludingDilutiveEffects" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IfrsWeightedAverageNumberOfSharesOutstandingBasic" id="ggb_IfrsWeightedAverageNumberOfSharesOutstandingBasic" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseThroughOtherChangesNotSeparatelyDisclosed" id="ggb_IncreaseDecreaseThroughOtherChangesNotSeparatelyDisclosed" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CapitalRiskManagementMaximumGrossDebt" id="ggb_CapitalRiskManagementMaximumGrossDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CapitalRiskManagementAverageDebtMaturity" id="ggb_CapitalRiskManagementAverageDebtMaturity" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InterestRateRiskAndForeignCurrencyRiskMember" id="ggb_InterestRateRiskAndForeignCurrencyRiskMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LocalInterbankDepositCertificateRateMember" id="ggb_LocalInterbankDepositCertificateRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DestinationOfNetIncomeProposedToShareholdersAbstract" id="ggb_DestinationOfNetIncomeProposedToShareholdersAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForGainsLossesOnChangeInTaxCreditsRecovery" id="ggb_AdjustmentsForGainsLossesOnChangeInTaxCreditsRecovery" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseThroughRemeasurementsRightOfUseAssets" id="ggb_IncreaseDecreaseThroughRemeasurementsRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IfrsDebtInstrumentInterestRateEffectivePercentage" id="ggb_IfrsDebtInstrumentInterestRateEffectivePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="AdjustmentToProfitLossDueToDilutiveEffectOfLongTermIncentivePlans" id="ggb_AdjustmentToProfitLossDueToDilutiveEffectOfLongTermIncentivePlans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfTradeAccountsPayableTableTextBlock" id="ggb_ScheduleOfTradeAccountsPayableTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TradeAccountsPayableDomesticMarketMember" id="ggb_TradeAccountsPayableDomesticMarketMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TradeAccountsPayableDebtorRiskMember" id="ggb_TradeAccountsPayableDebtorRiskMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TradeAccountsPayableImportsMember" id="ggb_TradeAccountsPayableImportsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GlobalCreditLineMember" id="ggb_GlobalCreditLineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LaborContingenciesMember" id="ggb_LaborContingenciesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PurchaseOfProceedsFromInterestsInInvestmentsAccountedForUsingEquityMethod" id="ggb_PurchaseOfProceedsFromInterestsInInvestmentsAccountedForUsingEquityMethod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="InterestPaidOnLeaseLiabilities" id="ggb_InterestPaidOnLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="TradeAccountsReceivablesCountryOfDomicileMember" id="ggb_TradeAccountsReceivablesCountryOfDomicileMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TradeAccountsReceivablesCountryOfDomicileExportsMember" id="ggb_TradeAccountsReceivablesCountryOfDomicileExportsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TradeAccountsReceivablesForeignCountriesMember" id="ggb_TradeAccountsReceivablesForeignCountriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsTaxPeriodAxis" id="ggb_IfrsTaxPeriodAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsTaxPeriodDomain" id="ggb_IfrsTaxPeriodDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EstimatesOfRealizationOfNonCurrentTaxCreditsAbstract" id="ggb_EstimatesOfRealizationOfNonCurrentTaxCreditsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassesOfTaxesAxis" id="ggb_ClassesOfTaxesAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassesOfTaxesDomain" id="ggb_ClassesOfTaxesDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncomeTaxesMember" id="ggb_IncomeTaxesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SocialContributionTaxesMember" id="ggb_SocialContributionTaxesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForeignSubsidiariesMember" id="ggb_ForeignSubsidiariesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ForeignSubsidiariesWithPrimarilyFinancialActivitiesMember" id="ggb_ForeignSubsidiariesWithPrimarilyFinancialActivitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInInvestmentsAccountedForUsingEquityMethodShareOfProfitLossFromOfAssociatesAndJointVenturesRecognizedInProfitLoss" id="ggb_IncreaseDecreaseInInvestmentsAccountedForUsingEquityMethodShareOfProfitLossFromOfAssociatesAndJointVenturesRecognizedInProfitLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseInInvestmentsAccountedForUsingEquityMethodIncreaseInCapitalInvestment" id="ggb_IncreaseInInvestmentsAccountedForUsingEquityMethodIncreaseInCapitalInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseInInvestmentsAccountedForUsingEquityMethodDividendsAndInterestOnEquity" id="ggb_IncreaseInInvestmentsAccountedForUsingEquityMethodDividendsAndInterestOnEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="BorrowingsExcludingNotesAndDebenturesGross" id="ggb_BorrowingsExcludingNotesAndDebenturesGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="AdjustmentToInterestRateMultiplier" id="ggb_AdjustmentToInterestRateMultiplier" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LessThanOneYearMember" id="ggb_LessThanOneYearMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RestrictedAndPerformanceSharesMember" id="ggb_RestrictedAndPerformanceSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsAwardDateAxis" id="ggb_IfrsAwardDateAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsAwardDateDomain" id="ggb_IfrsAwardDateDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AwardsGrantedIn2017AndLaterMember" id="ggb_AwardsGrantedIn2017AndLaterMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfSharesAbstract" id="ggb_NumberOfSharesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ValueOfSharesAbstract" id="ggb_ValueOfSharesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LegalReservesMinimumAnnualTransferAsPercentageOfAnnualNetIncome" id="ggb_LegalReservesMinimumAnnualTransferAsPercentageOfAnnualNetIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LegalReservesMaximumReserveBalanceAsPercentageOfTotalPaidInCapital" id="ggb_LegalReservesMaximumReserveBalanceAsPercentageOfTotalPaidInCapital" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="InsuranceContractsAssetsMember" id="ggb_InsuranceContractsAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsEarningsPerShareBasicAndDilutedAbstract" id="ggb_IfrsEarningsPerShareBasicAndDilutedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DebenturesFourteenthIssuanceMember" id="ggb_DebenturesFourteenthIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RentalIncomeRelatedParty" id="ggb_RentalIncomeRelatedParty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="FundacaoGerdauInstitutoGerdauAndFundacaoOuroBrancoMember" id="ggb_FundacaoGerdauInstitutoGerdauAndFundacaoOuroBrancoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinancialLiabilitiesContractualObligations" id="ggb_FinancialLiabilitiesContractualObligations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="LeasingPayablesMember" id="ggb_LeasingPayablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VoluntaryAppealFiledMember" id="ggb_VoluntaryAppealFiledMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IrpjCorporateIncomeTaxAndCsllSocialContributionTaxMember" id="ggb_IrpjCorporateIncomeTaxAndCsllSocialContributionTaxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EmbargoToEnforcementFiledMember" id="ggb_EmbargoToEnforcementFiledMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IcmsStateValueAddedTaxMember" id="ggb_IcmsStateValueAddedTaxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NoticeOfJudgmentReceivedMember" id="ggb_NoticeOfJudgmentReceivedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MotionForClarificationFiledMember" id="ggb_MotionForClarificationFiledMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SpecialAppealPendingMember" id="ggb_SpecialAppealPendingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VoluntaryAppealPendingMember" id="ggb_VoluntaryAppealPendingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RelatedPartiesNetMember" id="ggb_RelatedPartiesNetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfChangesInImpairmentOnFinancialAssetsTableTextBlock" id="ggb_DisclosureOfChangesInImpairmentOnFinancialAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsDerivativeFinancialInstrumentsAssetsMember" id="ggb_IfrsDerivativeFinancialInstrumentsAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsDerivativeFinancialInstrumentsLiabilitiesMember" id="ggb_IfrsDerivativeFinancialInstrumentsLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NorthAmericanPlansMember" id="ggb_NorthAmericanPlansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InvestmentsInAssociatesAndJointVenturesAbstract" id="ggb_InvestmentsInAssociatesAndJointVenturesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GerdauNextS.a.AndSubsidiariesMember" id="ggb_GerdauNextS.a.AndSubsidiariesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DividendsReceivableCurrent" id="ggb_DividendsReceivableCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GainOnTaxCreditsMonetaryUpdate" id="ggb_GainOnTaxCreditsMonetaryUpdate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DividendAdjustmentInExcessOfMinimumStatutoryUndistributed" id="ggb_DividendAdjustmentInExcessOfMinimumStatutoryUndistributed" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TaxEffectOfUnconstitutionalityOfIncidenceOfIncomeTaxRelatedToSelicDueToRepetitionOfUndueTax" id="ggb_TaxEffectOfUnconstitutionalityOfIncidenceOfIncomeTaxRelatedToSelicDueToRepetitionOfUndueTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TaxEffectOfDeferredTaxAssetsNotRecognizedOrRealizationNet" id="ggb_TaxEffectOfDeferredTaxAssetsNotRecognizedOrRealizationNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfSharesOutstandingUsedForDividendPayment" id="ggb_NumberOfSharesOutstandingUsedForDividendPayment" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfSharesOutstandingUsedForInterestPayment" id="ggb_NumberOfSharesOutstandingUsedForInterestPayment" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseThroughInterestOtherProvisions" id="ggb_IncreaseThroughInterestOtherProvisions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StatementOfFinancialPositionTable" id="ggb_StatementOfFinancialPositionTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StatementOfFinancialPositionLineItems" id="ggb_StatementOfFinancialPositionLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsStockRepurchasedDuringPeriodValue" id="ggb_IfrsStockRepurchasedDuringPeriodValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DescriptionOfAccountingPolicyForTaxClaimsPolicyTextBlock" id="ggb_DescriptionOfAccountingPolicyForTaxClaimsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DescriptionOfAccountingPolicyForRisksOfInternationalConflictsPolicyTextBlock" id="ggb_DescriptionOfAccountingPolicyForRisksOfInternationalConflictsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AddianteS.a.Member" id="ggb_AddianteS.a.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UbirataTecnologiaS.aMember" id="ggb_UbirataTecnologiaS.aMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NetRevenue" id="ggb_NetRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProfitLossBeforeFinancialIncomeExpensesAndTaxes" id="ggb_ProfitLossBeforeFinancialIncomeExpensesAndTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsInventoryAdjustments" id="ggb_IfrsInventoryAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredTaxLiabilitiesUndiscountedCashFlows" id="ggb_DeferredTaxLiabilitiesUndiscountedCashFlows" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredTaxAssetsUndiscountedCashFlows" id="ggb_DeferredTaxAssetsUndiscountedCashFlows" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TradeAccountsPayablesLetterOfCreditPaymentTerms" id="ggb_TradeAccountsPayablesLetterOfCreditPaymentTerms" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OtherLoansNotSeparatelyDisclosedMember" id="ggb_OtherLoansNotSeparatelyDisclosedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FairValueOfDerivativesByCategoryAbstract" id="ggb_FairValueOfDerivativesByCategoryAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ImpactOfDerivativeGainsLossesOnProfitLossAbstract" id="ggb_ImpactOfDerivativeGainsLossesOnProfitLossAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ImpactOfDerivativeGainsLossesOnOtherComprehensiveIncomeAbstract" id="ggb_ImpactOfDerivativeGainsLossesOnOtherComprehensiveIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LossesOnChangesInFairValueOfDerivativesRecognizedInOtherComprehensiveIncomeLoss" id="ggb_LossesOnChangesInFairValueOfDerivativesRecognizedInOtherComprehensiveIncomeLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetGainsLossesOnChangesInFairValueOfDerivativesRecognizedInOtherComprehensiveIncomeLoss" id="ggb_NetGainsLossesOnChangesInFairValueOfDerivativesRecognizedInOtherComprehensiveIncomeLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AdministrativeProcessingMember" id="ggb_AdministrativeProcessingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SuperiorChamberOfTaxAppealsMember" id="ggb_SuperiorChamberOfTaxAppealsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AwaitingJudgementLowerCourtMember" id="ggb_AwaitingJudgementLowerCourtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AwaitingJudgementEmbargoesToTaxEnforcementMember" id="ggb_AwaitingJudgementEmbargoesToTaxEnforcementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="InvestmentInDebentures" id="ggb_InvestmentInDebentures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsPaymentsForLegalSettlements" id="ggb_IfrsPaymentsForLegalSettlements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LawsuitWithAdministrativeCouncilForEconomicDefenseMember" id="ggb_LawsuitWithAdministrativeCouncilForEconomicDefenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ImpairmentOnFinancialAssets" id="ggb_ImpairmentOnFinancialAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsStockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" id="ggb_IfrsStockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="TaxDisclosureTaxYear2025Member" id="ggb_TaxDisclosureTaxYear2025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TaxDisclosureTaxYear2026Member" id="ggb_TaxDisclosureTaxYear2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TaxDisclosureTaxYear2027Member" id="ggb_TaxDisclosureTaxYear2027Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TaxDisclosureTaxYear2028Member" id="ggb_TaxDisclosureTaxYear2028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TaxDisclosureTaxYear2029Member" id="ggb_TaxDisclosureTaxYear2029Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TaxDisclosureTaxYear2030AndLaterMember" id="ggb_TaxDisclosureTaxYear2030AndLaterMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TotalNonCurrentAssetsExcludingDeferredIncomeTaxesFairValueOfDerivativesAndPrepaidPensionCost" id="ggb_TotalNonCurrentAssetsExcludingDeferredIncomeTaxesFairValueOfDerivativesAndPrepaidPensionCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DebenturesSixteenthIssuanceMember" id="ggb_DebenturesSixteenthIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebenturesNineteenIssuanceMember" id="ggb_DebenturesNineteenIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="CreditNovember102025Member" id="ggb_CreditNovember102025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CreditMarch102026Member" id="ggb_CreditMarch102026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBuyBackProgramPercentageOfTotalOutstandingShares" id="ggb_ShareBuyBackProgramPercentageOfTotalOutstandingShares" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsNumberOfReportableSegments" id="ggb_IfrsNumberOfReportableSegments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ImpairmentLossOnNonFinancialAssets" id="ggb_ImpairmentLossOnNonFinancialAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ShareOfAdjustedProfitLossBeforeInterestIncomeTaxDepreciationAndAmortizationOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" id="ggb_ShareOfAdjustedProfitLossBeforeInterestIncomeTaxDepreciationAndAmortizationOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TaxCreditsProvisionRecoveryAndOtherNonRecurringIncomeExpense" id="ggb_TaxCreditsProvisionRecoveryAndOtherNonRecurringIncomeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AdjustedProfitLossBeforeInterestIncomeTaxDepreciationAndAmortization" id="ggb_AdjustedProfitLossBeforeInterestIncomeTaxDepreciationAndAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ShareOfProfitLossFromOperatingActivitiesOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" id="ggb_ShareOfProfitLossFromOperatingActivitiesOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ShareOfDepreciationAndAmortisationAddedBackOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" id="ggb_ShareOfDepreciationAndAmortisationAddedBackOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ReconciliationOfIncomeTaxBeforeTaxToAdjustedEarningsBeforeInterestIncomeTaxDepreciationAndAmortisationTableTextBlock" id="ggb_ReconciliationOfIncomeTaxBeforeTaxToAdjustedEarningsBeforeInterestIncomeTaxDepreciationAndAmortisationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SouthAmericaCountriesExcludingBrazilMember" id="ggb_SouthAmericaCountriesExcludingBrazilMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfAccountingPolicyForTariffsOnExportsPolicyTextBlock" id="ggb_DisclosureOfAccountingPolicyForTariffsOnExportsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfAccountingPolicyForPillarTwoIncomeTaxesPolicyTextBlock" id="ggb_DisclosureOfAccountingPolicyForPillarTwoIncomeTaxesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShortTermDepositsNotClassifiedAsCashEquivalentsRecognisedAsOfAcquisitionDate" id="ggb_ShortTermDepositsNotClassifiedAsCashEquivalentsRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TradeReceivablesRecognisedAsOfAcquisitionDate" id="ggb_TradeReceivablesRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
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  <xsd:element name="OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" id="ggb_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IdentifiableAssetsAcquiredLiabilitiesAssumedBeforeBargainGainAndDeferredTaxes" id="ggb_IdentifiableAssetsAcquiredLiabilitiesAssumedBeforeBargainGainAndDeferredTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BargainPurchaseGainFromAcquisition" id="ggb_BargainPurchaseGainFromAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
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  <xsd:element name="RioDoSangueEnergiaS.a.Member" id="ggb_RioDoSangueEnergiaS.a.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ComercialGerdauAosPlanosLtdaMember" id="ggb_ComercialGerdauAosPlanosLtdaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ParanatingaEnergiaS.a.Member" id="ggb_ParanatingaEnergiaS.a.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BradleySteelProcessorsIncMember" id="ggb_BradleySteelProcessorsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AcquisitionAchievedInStagesPreAcquisitionAndAcquiredEquityInterestsInAcquireePercentage" id="ggb_AcquisitionAchievedInStagesPreAcquisitionAndAcquiredEquityInterestsInAcquireePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IncreaseInInvestmentAccountedForUsingEquityMethodThroughObtainingControlOfCompanies" id="ggb_IncreaseInInvestmentAccountedForUsingEquityMethodThroughObtainingControlOfCompanies" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
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  <xsd:element name="DebtBackedByExportContractsMember" id="ggb_DebtBackedByExportContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtBackedByAgriculturalActivitiesMember" id="ggb_DebtBackedByAgriculturalActivitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BondMaturingIn2035Member" id="ggb_BondMaturingIn2035Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShortTermDebtFromTopTierFinancialInstitutionsMember" id="ggb_ShortTermDebtFromTopTierFinancialInstitutionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingArrangementsWithBrazilianDevelopmentBankMember" id="ggb_FinancingArrangementsWithBrazilianDevelopmentBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwoThousandTwentySevenBondsMember" id="ggb_TwoThousandTwentySevenBondsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtWithFirstTierFinancialInstitutionsMember" id="ggb_DebtWithFirstTierFinancialInstitutionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtAssociatedWithDerivativeInstrumentsMember" id="ggb_DebtAssociatedWithDerivativeInstrumentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="IfrsDebtInstrumentRepurchasedFaceAmount" id="ggb_IfrsDebtInstrumentRepurchasedFaceAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
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  <xsd:element name="LaterThanFiveYearsAndNotLaterThanSixYearsMember" id="ggb_LaterThanFiveYearsAndNotLaterThanSixYearsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="FinancialGuaranteeContractsMaturityMarch2026Member" id="ggb_FinancialGuaranteeContractsMaturityMarch2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="FinancialGuaranteeContractsMaturityJune2028Member" id="ggb_FinancialGuaranteeContractsMaturityJune2028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
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  <xsd:element name="FinancialGuaranteeContractsMaturityMarch2035SeriesThreeMember" id="ggb_FinancialGuaranteeContractsMaturityMarch2035SeriesThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancialGuaranteeContractsMaturityJune2035Member" id="ggb_FinancialGuaranteeContractsMaturityJune2035Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancialGuaranteeContractsMaturityOctober2041Member" id="ggb_FinancialGuaranteeContractsMaturityOctober2041Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UfvBarroAltoVGeracaoDeEnergiaSpeLtdaMember" id="ggb_UfvBarroAltoVGeracaoDeEnergiaSpeLtdaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfOtherEquityInstrumentsIncreaseReductionDueToBaseAdjustmentsShareBasedPaymentArrangement" id="ggb_NumberOfOtherEquityInstrumentsIncreaseReductionDueToBaseAdjustmentsShareBasedPaymentArrangement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="HedgingInstrumentMaturingIn2026OneMember" id="ggb_HedgingInstrumentMaturingIn2026OneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancialResultNet" id="ggb_FinancialResultNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipments" id="ggb_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetIncomeReserveMember" id="ggb_NetIncomeReserveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
