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  <xs:element id="cenx_MultiemployerPlanTrancheTwoMember" abstract="true" name="MultiemployerPlanTrancheTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cenx_RavenswoodlitigationAbstract" abstract="true" name="RavenswoodlitigationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cenx_LitigationSettlementPeriod" abstract="false" name="LitigationSettlementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cenx_LitigationSettlementAnnualInstallment" abstract="false" name="LitigationSettlementAnnualInstallment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_LitigationSettlementInstallmentPeriod" abstract="false" name="LitigationSettlementInstallmentPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cenx_HawesvilleAbstract" abstract="true" name="HawesvilleAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cenx_MultiemployerPlansPartialWithdrawalLiability" abstract="false" name="MultiemployerPlansPartialWithdrawalLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_MultiemployerPlanEmployerContributionQuarterlyCost" abstract="false" name="MultiemployerPlanEmployerContributionQuarterlyCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_MultiemployerPlanEmployerContributionNumberOfQuarters" abstract="false" name="MultiemployerPlanEmployerContributionNumberOfQuarters" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cenx_LegalContingenciesAbstract" abstract="true" name="LegalContingenciesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cenx_PowerSupplyAgreementExtensionTerm" abstract="false" name="PowerSupplyAgreementExtensionTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cenx_PowerSupplyAgreementRequiredTerminationPeriod" abstract="false" name="PowerSupplyAgreementRequiredTerminationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cenx_ShortTermPowerAgreementSupplyPercentage" abstract="false" name="ShortTermPowerAgreementSupplyPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cenx_UnderlyingDerivativePowerAvailable" abstract="false" name="UnderlyingDerivativePowerAvailable" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="cenx_InsuranceContingenciesAbstract" abstract="true" name="InsuranceContingenciesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cenx_NumberOfPotlinesEffected" abstract="false" name="NumberOfPotlinesEffected" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cenx_NumberOfPotlines" abstract="false" name="NumberOfPotlines" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cenx_TemporaryReductionInProductionPercentage" abstract="false" name="TemporaryReductionInProductionPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cenx_LaborCommitmentsAbstract" abstract="true" name="LaborCommitmentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cenx_PercentageOfWorkForceInUnion" abstract="false" name="PercentageOfWorkForceInUnion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cenx_PercentageOfForeignWorkForceCoveredUnderNewLaborAgreement" abstract="false" name="PercentageOfForeignWorkForceCoveredUnderNewLaborAgreement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cenx_NumberOfLaborUnionsUnderNewLaborAgreement" abstract="false" name="NumberOfLaborUnionsUnderNewLaborAgreement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cenx_PercentageOfDomesticWorkForceInUnion" abstract="false" name="PercentageOfDomesticWorkForceInUnion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cenx_PercentageOfForeignWorkForceRepresentedByUnion" abstract="false" name="PercentageOfForeignWorkForceRepresentedByUnion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cenx_ContingentConsiderationAccruedInterestAndPrincipal" abstract="false" name="ContingentConsiderationAccruedInterestAndPrincipal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_ProceedsFromInsuranceSettlement" abstract="false" name="ProceedsFromInsuranceSettlement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_InsuranceRecoveryExpense" abstract="false" name="InsuranceRecoveryExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_StockRepurchaseProgramAdditionalAuthorizedAmount" abstract="false" name="StockRepurchaseProgramAdditionalAuthorizedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_NumberOfSmelters" abstract="false" name="NumberOfSmelters" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cenx_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cenx_CostOfGoodsAndServicesSoldAdjusted" abstract="false" name="CostOfGoodsAndServicesSoldAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_CostOfGoodsAndServicesSoldInflationReductionAct" abstract="false" name="CostOfGoodsAndServicesSoldInflationReductionAct" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_CostsOfGoodsAndServicesSoldLowerOfCostOrNetRealizableValueInventoryAdjustment" abstract="false" name="CostsOfGoodsAndServicesSoldLowerOfCostOrNetRealizableValueInventoryAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_PropertyAndEquipmentExpenseAdjusted" abstract="false" name="PropertyAndEquipmentExpenseAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cenx_JamalcoMember" abstract="true" name="JamalcoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cenx_GovernmentOfJamaicaMember" abstract="true" name="GovernmentOfJamaicaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cenx_SubsidiaryPercentageOfOutputRetainedUtilizedOrSoldByTheCompany" abstract="false" name="SubsidiaryPercentageOfOutputRetainedUtilizedOrSoldByTheCompany" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cenx_SubsidiaryPercentageOfOperationsReflectedInCashFlows" abstract="false" name="SubsidiaryPercentageOfOperationsReflectedInCashFlows" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
