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  <xsd:element id="zeus_OperatingAndFinanceLeaseLiabilityMaturityTableTextBlock" name="OperatingAndFinanceLeaseLiabilityMaturityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_OperatingAndFinanceLeasePayments" name="OperatingAndFinanceLeasePayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="zeus_OperatingLeaseRightOfUseAssetAccumulatedAmortization" name="OperatingLeaseRightOfUseAssetAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="zeus_OperatingLeaseRightOfUseAssetGross" name="OperatingLeaseRightOfUseAssetGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="zeus_OtherAccruedLiabilitiesAndOtherLongtermLiabilitiesMember" name="OtherAccruedLiabilitiesAndOtherLongtermLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_PerformanceBasedAwardCapPercentageOfGrant" name="PerformanceBasedAwardCapPercentageOfGrant" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_PerformanceBasedCashAwardsMember" name="PerformanceBasedCashAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_PlateProductsMember" name="PlateProductsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_PresidentAndChiefOperatingOfficerMember" name="PresidentAndChiefOperatingOfficerMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_RestrictedStockUnitesAndPerformanceStockUnitsMember" name="RestrictedStockUnitesAndPerformanceStockUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_RevenueFromContractWithCustomerIncludingAssessedTaxPercentage" name="RevenueFromContractWithCustomerIncludingAssessedTaxPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" name="ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_ServiceBasedCashAwardsMember" name="ServiceBasedCashAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodValue" name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="zeus_SharebasedCompensationArrangementBySharebasedPaymentAwardMaximumAmountPerEmployee" name="SharebasedCompensationArrangementBySharebasedPaymentAwardMaximumAmountPerEmployee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_SpecialtyMember" name="SpecialtyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_SpecialtyMetalsFlatProductsMember" name="SpecialtyMetalsFlatProductsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_StockIssuanceProgramAuthorizedAmount" name="StockIssuanceProgramAuthorizedAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="zeus_StockIssuanceProgramGrossProceedsPercent" name="StockIssuanceProgramGrossProceedsPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="zeus_StockRepurchasesValueExceeds50MillionOption1Member" name="StockRepurchasesValueExceeds50MillionOption1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_StockRepurchasesValueExceeds50MillionOption2Member" name="StockRepurchasesValueExceeds50MillionOption2Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_TubeProductsMember" name="TubeProductsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_TubularAndPipeProductsMember" name="TubularAndPipeProductsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="zeus_UnrestrictedCommonStockPurchasesMaximumValue" name="UnrestrictedCommonStockPurchasesMaximumValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="zeus_WarehouseAndProcessing" name="WarehouseAndProcessing" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-10-fair-value-of-assets-and-liabilities-fair-value-measurements-recorded-details" name="statement-statement-note-10-fair-value-of-assets-and-liabilities-fair-value-measurements-recorded-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-10-fair-value-of-assets-and-liabilities-fair-value-measurements-recorded-details1B51ADF6-A968-4FC0-B242-C4619908C960" name="statement-statement-note-10-fair-value-of-assets-and-liabilities-fair-value-measurements-recorded-details1B51ADF6-A968-4FC0-B242-C4619908C960" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-10-fair-value-of-assets-and-liabilities-tables" name="statement-statement-note-10-fair-value-of-assets-and-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-12-equity-plans-restricted-stock-unit-activity-details" name="statement-statement-note-12-equity-plans-restricted-stock-unit-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-12-equity-plans-stockbased-compensation-expense-recognized-on-restricted-stock-units-details" name="statement-statement-note-12-equity-plans-stockbased-compensation-expense-recognized-on-restricted-stock-units-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-12-equity-plans-tables" name="statement-statement-note-12-equity-plans-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-14-shares-outstanding-and-earnings-per-share-earnings-per-share-details" name="statement-statement-note-14-shares-outstanding-and-earnings-per-share-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-14-shares-outstanding-and-earnings-per-share-tables" name="statement-statement-note-14-shares-outstanding-and-earnings-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-16-segment-information-segment-reporting-information-by-capital-expenditures-and-assets-details" name="statement-statement-note-16-segment-information-segment-reporting-information-by-capital-expenditures-and-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-16-segment-information-segment-reporting-information-by-capital-expenditures-and-assets-details2EFFB8A4-E662-4B45-A9D0-38C0BAE957C0" name="statement-statement-note-16-segment-information-segment-reporting-information-by-capital-expenditures-and-assets-details2EFFB8A4-E662-4B45-A9D0-38C0BAE957C0" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-16-segment-information-segment-reporting-information-by-revenue-details" name="statement-statement-note-16-segment-information-segment-reporting-information-by-revenue-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-16-segment-information-tables" name="statement-statement-note-16-segment-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-2-acquisitions-pro-forma-details" name="statement-statement-note-2-acquisitions-pro-forma-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-2-acquisitions-purchase-price-allocation-details" name="statement-statement-note-2-acquisitions-purchase-price-allocation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-2-acquisitions-tables" name="statement-statement-note-2-acquisitions-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-3-revenue-recognition-disaggregation-of-revenues-percentage-details" name="statement-statement-note-3-revenue-recognition-disaggregation-of-revenues-percentage-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-3-revenue-recognition-disaggregation-of-revenues-percentage-detailsD550B9BD-EF33-444A-8E39-AB1DF5A0B5CB" name="statement-statement-note-3-revenue-recognition-disaggregation-of-revenues-percentage-detailsD550B9BD-EF33-444A-8E39-AB1DF5A0B5CB" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-3-revenue-recognition-tables" name="statement-statement-note-3-revenue-recognition-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-5-inventories-steel-inventories-details" name="statement-statement-note-5-inventories-steel-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-5-inventories-tables" name="statement-statement-note-5-inventories-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-6-goodwill-and-intangible-assets-goodwill-by-reportable-segment-details" name="statement-statement-note-6-goodwill-and-intangible-assets-goodwill-by-reportable-segment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-6-goodwill-and-intangible-assets-intangible-assets-net-details" name="statement-statement-note-6-goodwill-and-intangible-assets-intangible-assets-net-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-6-goodwill-and-intangible-assets-intangible-assets-net-details00F70E31-5626-4092-9EC5-3C38C0C66F26" name="statement-statement-note-6-goodwill-and-intangible-assets-intangible-assets-net-details00F70E31-5626-4092-9EC5-3C38C0C66F26" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-6-goodwill-and-intangible-assets-tables" name="statement-statement-note-6-goodwill-and-intangible-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-7-leases-balance-sheet-information-related-to-leases-details" name="statement-statement-note-7-leases-balance-sheet-information-related-to-leases-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-7-leases-lease-cost-details" name="statement-statement-note-7-leases-lease-cost-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-7-leases-lease-payments-details" name="statement-statement-note-7-leases-lease-payments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-7-leases-maturities-of-lease-liabilities-details" name="statement-statement-note-7-leases-maturities-of-lease-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-7-leases-tables" name="statement-statement-note-7-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-8-debt-summary-of-debt-details" name="statement-statement-note-8-debt-summary-of-debt-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-8-debt-tables" name="statement-statement-note-8-debt-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-9-derivative-instruments-impact-from-derivatives-on-consolidated-statements-of-comprehensive-income-details" name="statement-statement-note-9-derivative-instruments-impact-from-derivatives-on-consolidated-statements-of-comprehensive-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-note-9-derivative-instruments-tables" name="statement-statement-note-9-derivative-instruments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="zeus_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
