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  <xs:element id="slgn_MetalContainersMember" abstract="true" name="MetalContainersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_CustomContainersMember" abstract="true" name="CustomContainersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_EuropeandOtherMember" abstract="true" name="EuropeandOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_FacilityClosingNettingMember" abstract="true" name="FacilityClosingNettingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_AssetImpairmentsMember" abstract="true" name="AssetImpairmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_RationalizationPlanReservesUtilizedandCTA" abstract="false" name="RationalizationPlanReservesUtilizedandCTA" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="slgn_PeriodAxis" abstract="true" name="PeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="slgn_PeriodDomain" abstract="true" name="PeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_AnnuallyThrough2040Member" abstract="true" name="AnnuallyThrough2040Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_CentralStatesPensionPlanwithdrawalMember" abstract="true" name="CentralStatesPensionPlanwithdrawalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_RationalizationPlanMember" abstract="true" name="RationalizationPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_RevolvingLoanMember" abstract="true" name="RevolvingLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_USTermLoansMember" abstract="true" name="USTermLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_EuroTermLoansMember" abstract="true" name="EuroTermLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_OtherForeignBankRevolvingAndTermLoansMember" abstract="true" name="OtherForeignBankRevolvingAndTermLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_USRevolvingLoansMember" abstract="true" name="USRevolvingLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_FinanceLeasesMember" abstract="true" name="FinanceLeasesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_BankBorrowingsMember" abstract="true" name="BankBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_ThreeandOneQuarterPercentSeniorNotesdue2025Member" abstract="true" name="ThreeandOneQuarterPercentSeniorNotesdue2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_FourandOneEighthPercentSeniorNotesDue2028Member" abstract="true" name="FourandOneEighthPercentSeniorNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_TwoAndOneQuarterPercentSeniorNotesDue2028Member" abstract="true" name="TwoAndOneQuarterPercentSeniorNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_OnePointFourPercentSeniorNotesDue2026Member" abstract="true" name="OnePointFourPercentSeniorNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_DebtLongTermAndShortTermLessUnamortizedDebtIssuanceExpenseAndDebtDiscountCombinedAmount" abstract="false" name="DebtLongTermAndShortTermLessUnamortizedDebtIssuanceExpenseAndDebtDiscountCombinedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="slgn_EuroRevolvingLoansMember" abstract="true" name="EuroRevolvingLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_USDInterestRateSwapMember" abstract="true" name="USDInterestRateSwapMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_EuroDollarInterestRateSwapMember" abstract="true" name="EuroDollarInterestRateSwapMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_SupplierFinanceProgramTerminationNoticePeriod" abstract="false" name="SupplierFinanceProgramTerminationNoticePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="slgn_SupplierFinanceProgramTerminationNoticePeriodByFinancialInstitution" abstract="false" name="SupplierFinanceProgramTerminationNoticePeriodByFinancialInstitution" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="slgn_TreasuryStockAxis" abstract="true" name="TreasuryStockAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="slgn_TreasuryStockDomain" abstract="true" name="TreasuryStockDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_ActivityRelatedToRestrictedStockUnitsVestedMember" abstract="true" name="ActivityRelatedToRestrictedStockUnitsVestedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_A2022BODAuthorizedCommonStockRepurchaseMember" abstract="true" name="A2022BODAuthorizedCommonStockRepurchaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="slgn_Treasurystockissuedduringperiodaveragecostpershare" abstract="false" name="Treasurystockissuedduringperiodaveragecostpershare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="slgn_NumberOfShareBasedCompensationArrangement" abstract="false" name="NumberOfShareBasedCompensationArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="slgn_SegmentReportingSegmentExpensesAndOther" abstract="false" name="SegmentReportingSegmentExpensesAndOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="slgn_EarningsBeforeInterestAndTaxesAdjusted" abstract="false" name="EarningsBeforeInterestAndTaxesAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="slgn_SegmentReportingAssets" abstract="false" name="SegmentReportingAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="slgn_AmortizationOfAcquiredIntangibleAssets" abstract="false" name="AmortizationOfAcquiredIntangibleAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="slgn_PensionAndOtherPostretirementBenefitsCostReversalOfCostDomesticPlans" abstract="false" name="PensionAndOtherPostretirementBenefitsCostReversalOfCostDomesticPlans" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
