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  <xsd:element id="rs_DebtRedemptionPriceDueToChangeOfControlAndDowngradeOfCreditRatingAsPercentageOfPrincipalAmount" name="DebtRedemptionPriceDueToChangeOfControlAndDowngradeOfCreditRatingAsPercentageOfPrincipalAmount" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element name="CashSurrenderValuePoliciesByBorrowingStatusAxis" id="rs_CashSurrenderValuePoliciesByBorrowingStatusAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CashSurrenderValuePoliciesByBorrowingStatusDomain" id="rs_CashSurrenderValuePoliciesByBorrowingStatusDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CarbonSteelMember" id="rs_CarbonSteelMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AluminumMember" id="rs_AluminumMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="StainlessSteelMember" id="rs_StainlessSteelMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AlloySteelMember" id="rs_AlloySteelMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TollProcessingMember" id="rs_TollProcessingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element id="rs_OtherProductsOrServicesMember" name="OtherProductsOrServicesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="EnvironmentalContingenciesAbstract" id="rs_EnvironmentalContingenciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element id="rs_ScheduleOfNonvestedRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" name="ScheduleOfNonvestedRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="rs_MajorityInterestOwnershipPercentageByParent" name="MajorityInterestOwnershipPercentageByParent" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="rs_ShareOfCommonStock" name="ShareOfCommonStock" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element name="BusinessAcquisitionProFormaFinancialInformationAbstract" id="rs_BusinessAcquisitionProFormaFinancialInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ImpactOfNewAccountingPronouncementsNotYetAdoptedPolicyTextBlock" id="rs_ImpactOfNewAccountingPronouncementsNotYetAdoptedPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ComponentOfOtherNonoperatingIncomeExpenseAxis" id="rs_ComponentOfOtherNonoperatingIncomeExpenseAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ComponentOfOtherNonoperatingIncomeExpenseNameDomain" id="rs_ComponentOfOtherNonoperatingIncomeExpenseNameDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element id="rs_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesReservedForFutureIssue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesReservedForFutureIssue" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="rs_PaymentOfDividendEquivalents" name="PaymentOfDividendEquivalents" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="rs_PaymentsOfOrdinaryDividendsCommonStockAndDividendEquivalents" name="PaymentsOfOrdinaryDividendsCommonStockAndDividendEquivalents" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="rs_StockRepurchaseAcquiredAverageCostPerShare" name="StockRepurchaseAcquiredAverageCostPerShare" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="rs_DividendsAndDividendEquivalentsCommonStockCash" name="DividendsAndDividendEquivalentsCommonStockCash" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="rs_OtherNotesAndRevolvingCreditFacilitiesMember" name="OtherNotesAndRevolvingCreditFacilitiesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_CreditAgreementMember" name="CreditAgreementMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_NumberOfFinancialCovenants" name="NumberOfFinancialCovenants" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="rs_LesseeOperatingLeaseSupplementalCashFlowAndOtherLeaseInformationTableTextBlock" name="LesseeOperatingLeaseSupplementalCashFlowAndOtherLeaseInformationTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="rs_LongTermDebtCurrentAndShortTermDebt" name="LongTermDebtCurrentAndShortTermDebt" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="rs_LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive" name="LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="rs_SeniorUnsecuredNotesDue2025Member" name="SeniorUnsecuredNotesDue2025Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_SeniorUnsecuredNotesDue2030Member" name="SeniorUnsecuredNotesDue2030Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_UnsecuredRevolvingCreditFacilityDueSeptember2025Member" name="UnsecuredRevolvingCreditFacilityDueSeptember2025Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_AllStockBasedCompensationPlansMember" name="AllStockBasedCompensationPlansMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_AdmiralMetalsServicenterCompanyInc.Member" name="AdmiralMetalsServicenterCompanyInc.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_MerfishUnitedInc.Member" name="MerfishUnitedInc.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="rs_Acquisitions2021Member" name="Acquisitions2021Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" id="rs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities" id="rs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtInstrumentInterestRateSemiAnnualPercentage" id="rs_DebtInstrumentInterestRateSemiAnnualPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="RestrictedStockUnitsRsuAndPerformanceStockUnitsPsuMember" id="rs_RestrictedStockUnitsRsuAndPerformanceStockUnitsPsuMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfLocationsAcquireeProvidesServicesFrom" id="rs_NumberOfLocationsAcquireeProvidesServicesFrom" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="PerformanceStockUnitsPsuMember" id="rs_PerformanceStockUnitsPsuMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BacklogOfOrdersMember" id="rs_BacklogOfOrdersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LetterOfCreditSublimitMember" id="rs_LetterOfCreditSublimitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardUnsettledInstrumentsOtherThanOptions" id="rs_ShareBasedCompensationArrangementByShareBasedPaymentAwardUnsettledInstrumentsOtherThanOptions" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DeferredCompensationLiabilityAndPensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent" id="rs_DeferredCompensationLiabilityAndPensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
</xsd:schema>
