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    <link:label id="lab_kalu_IntercompanyReceivablesCurrent_94A0F1F396676FC58C97BF2C193C5AC3_documentation_en-US" xlink:label="lab_kalu_IntercompanyReceivablesCurrent_94A0F1F396676FC58C97BF2C193C5AC3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Intercompany Receivables, Current</link:label>
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    <link:label id="lab_us-gaap_OtherReceivables_8DDE8EAFAC24C0CA7C57BF2C193C3FF0_label_en-US" xlink:label="lab_us-gaap_OtherReceivables_8DDE8EAFAC24C0CA7C57BF2C193C3FF0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Receivables</link:label>
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    <link:label id="lab_us-gaap_InventoryNet_F108C1E4EE98CEFB0C74BF2C193C26A1_label_en-US" xlink:label="lab_us-gaap_InventoryNet_F108C1E4EE98CEFB0C74BF2C193C26A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Net</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNet_F108C1E4EE98CEFB0C74BF2C193C26A1" xlink:to="lab_us-gaap_InventoryNet_F108C1E4EE98CEFB0C74BF2C193C26A1" xlink:type="arc" />
    <link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_C9C8A41F7FFDE26B2B73BF2C193C3D2D_verboseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_C9C8A41F7FFDE26B2B73BF2C193C3D2D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Prepaid expenses and other current assets</link:label>
    <link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_C9C8A41F7FFDE26B2B73BF2C193C3D2D_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_C9C8A41F7FFDE26B2B73BF2C193C3D2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepaid Expense and Other Assets, Current</link:label>
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    <link:label id="lab_us-gaap_AssetsCurrent_4C2891CF250E3F9E3038BF2C193CC90D_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_4C2891CF250E3F9E3038BF2C193CC90D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrent_4C2891CF250E3F9E3038BF2C193CC90D_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_4C2891CF250E3F9E3038BF2C193CC90D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current</link:label>
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_B07C48001335919C2B45BF2C193DD18F_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_B07C48001335919C2B45BF2C193DD18F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
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    <link:label id="lab_kalu_IntercompanyReceivablesNoncurrent_D793058A130CCA01DF4BBF2C193DDA63_terseLabel_en-US" xlink:label="lab_kalu_IntercompanyReceivablesNoncurrent_D793058A130CCA01DF4BBF2C193DDA63" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intercompany long-term receivables</link:label>
    <link:label id="lab_kalu_IntercompanyReceivablesNoncurrent_D793058A130CCA01DF4BBF2C193DDA63_label_en-US" xlink:label="lab_kalu_IntercompanyReceivablesNoncurrent_D793058A130CCA01DF4BBF2C193DDA63" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intercompany Receivables, Noncurrent</link:label>
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    <link:loc xlink:href="kalu-20120630.xsd#kalu_IntercompanyReceivablesNoncurrent" xlink:label="loc_kalu_IntercompanyReceivablesNoncurrent_D793058A130CCA01DF4BBF2C193DDA63" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_kalu_IntercompanyReceivablesNoncurrent_D793058A130CCA01DF4BBF2C193DDA63" xlink:to="lab_kalu_IntercompanyReceivablesNoncurrent_D793058A130CCA01DF4BBF2C193DDA63" xlink:type="arc" />
    <link:label id="lab_kalu_NetAssetInRespectOfVebas_9358E2599E6EBEACD8E5BF2C193D9A56_verboseLabel_en-US" xlink:label="lab_kalu_NetAssetInRespectOfVebas_9358E2599E6EBEACD8E5BF2C193D9A56" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net asset in respect of VEBA</link:label>
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    <link:loc xlink:href="kalu-20120630.xsd#kalu_NetAssetInRespectOfVebas" xlink:label="loc_kalu_NetAssetInRespectOfVebas_9358E2599E6EBEACD8E5BF2C193D9A56" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DeferredTaxAssetsNetNoncurrent_01758D8CF769F224CB9EBF2C193D6781_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsNetNoncurrent_01758D8CF769F224CB9EBF2C193D6781" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax assets - net</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsNetNoncurrent_01758D8CF769F224CB9EBF2C193D6781_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsNetNoncurrent_01758D8CF769F224CB9EBF2C193D6781" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Net, Noncurrent</link:label>
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    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_5C3C3D082B2816A48B47BF2C193DC10B_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_5C3C3D082B2816A48B47BF2C193DC10B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets - net</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_5C3C3D082B2816A48B47BF2C193DC10B_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_5C3C3D082B2816A48B47BF2C193DC10B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Net</link:label>
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    <link:label id="lab_us-gaap_Goodwill_41C3F554C3DD4FED9564BF2C193DF2BF_label_en-US" xlink:label="lab_us-gaap_Goodwill_41C3F554C3DD4FED9564BF2C193DF2BF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_823454E3E7D8318AFBD2BF2C193D7C01_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_823454E3E7D8318AFBD2BF2C193D7C01" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current [Abstract]</link:label>
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    <link:label id="lab_us-gaap_AccountsPayableCurrent_7715A8A197DF6379F9D4BF2C193D6FC9_verboseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_7715A8A197DF6379F9D4BF2C193D6FC9" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_AccountsPayableCurrent_7715A8A197DF6379F9D4BF2C193D6FC9_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_7715A8A197DF6379F9D4BF2C193D6FC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_7715A8A197DF6379F9D4BF2C193D6FC9" xlink:type="locator" />
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    <link:label id="lab_kalu_IntercompanyPayableCurrent_B686C3F180ECF7A31A67BF2C193E28AE_documentation_en-US" xlink:label="lab_kalu_IntercompanyPayableCurrent_B686C3F180ECF7A31A67BF2C193E28AE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Intercompany payable, Current</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_D298CCE9C11CAF0659FBBF2C193EA1DB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherAccruedLiabilitiesCurrent_E36FE84EE0A968FA7748BF2C193E82AB_label_en-US" xlink:label="lab_us-gaap_OtherAccruedLiabilitiesCurrent_E36FE84EE0A968FA7748BF2C193E82AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Accrued Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_E36FE84EE0A968FA7748BF2C193E82AB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DueToRelatedPartiesCurrent_99E101F9941C097B4938BF2C193E724E_label_en-US" xlink:label="lab_us-gaap_DueToRelatedPartiesCurrent_99E101F9941C097B4938BF2C193E724E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Due to Related Parties, Current</link:label>
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    <link:label id="lab_us-gaap_SecuredDebtCurrent_CBFA235CECEFB19AA1AFBF2C193E949B_verboseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtCurrent_CBFA235CECEFB19AA1AFBF2C193E949B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Long-term debt-current portion</link:label>
    <link:label id="lab_us-gaap_SecuredDebtCurrent_CBFA235CECEFB19AA1AFBF2C193E949B_label_en-US" xlink:label="lab_us-gaap_SecuredDebtCurrent_CBFA235CECEFB19AA1AFBF2C193E949B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Secured Debt, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SecuredDebtCurrent" xlink:label="loc_us-gaap_SecuredDebtCurrent_CBFA235CECEFB19AA1AFBF2C193E949B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LiabilitiesCurrent_DD486B3B2B0CFEDA3441BF2C193EAA46_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_DD486B3B2B0CFEDA3441BF2C193EAA46" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_DD486B3B2B0CFEDA3441BF2C193EAA46_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_DD486B3B2B0CFEDA3441BF2C193EAA46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_DD486B3B2B0CFEDA3441BF2C193EAA46" xlink:type="locator" />
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    <link:label id="lab_kalu_NetLiabilityInRespectOfVeba_5880907D6648A71C8E6BBF2C193E840A_terseLabel_en-US" xlink:label="lab_kalu_NetLiabilityInRespectOfVeba_5880907D6648A71C8E6BBF2C193E840A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net liability in respect of VEBA</link:label>
    <link:label id="lab_kalu_NetLiabilityInRespectOfVeba_5880907D6648A71C8E6BBF2C193E840A_label_en-US" xlink:label="lab_kalu_NetLiabilityInRespectOfVeba_5880907D6648A71C8E6BBF2C193E840A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net liability in respect of VEBA</link:label>
    <link:label id="lab_kalu_NetLiabilityInRespectOfVeba_5880907D6648A71C8E6BBF2C193E840A_documentation_en-US" xlink:label="lab_kalu_NetLiabilityInRespectOfVeba_5880907D6648A71C8E6BBF2C193E840A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net liability in respect of VEBA</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_NetLiabilityInRespectOfVeba" xlink:label="loc_kalu_NetLiabilityInRespectOfVeba_5880907D6648A71C8E6BBF2C193E840A" xlink:type="locator" />
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    <link:label id="lab_kalu_IntercompanyPayableNoncurrent_258EA69F47C0ECA82394BF2C193EFCBE_terseLabel_en-US" xlink:label="lab_kalu_IntercompanyPayableNoncurrent_258EA69F47C0ECA82394BF2C193EFCBE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intercompany long-term liabilities</link:label>
    <link:label id="lab_kalu_IntercompanyPayableNoncurrent_258EA69F47C0ECA82394BF2C193EFCBE_label_en-US" xlink:label="lab_kalu_IntercompanyPayableNoncurrent_258EA69F47C0ECA82394BF2C193EFCBE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intercompany Payable, Noncurrent</link:label>
    <link:label id="lab_kalu_IntercompanyPayableNoncurrent_258EA69F47C0ECA82394BF2C193EFCBE_documentation_en-US" xlink:label="lab_kalu_IntercompanyPayableNoncurrent_258EA69F47C0ECA82394BF2C193EFCBE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Intercompany Payable, Noncurrent</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_IntercompanyPayableNoncurrent" xlink:label="loc_kalu_IntercompanyPayableNoncurrent_258EA69F47C0ECA82394BF2C193EFCBE" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_64BDBC7C0FBC8B90A5E8BF2C193EA2C7_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_64BDBC7C0FBC8B90A5E8BF2C193EA2C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Noncurrent</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromEquityMethodInvestments_B9986217BDF6C4B1C1C9BF2C19404D4A" xlink:to="lab_us-gaap_IncomeLossFromEquityMethodInvestments_B9986217BDF6C4B1C1C9BF2C19404D4A" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_00A14CFF0559B3A6B703BF2C1940F057_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_00A14CFF0559B3A6B703BF2C1940F057" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
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    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_941DB3E9C43DBBC6BB1CBF2C19404C1F_netLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax_941DB3E9C43DBBC6BB1CBF2C19404C1F" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income (loss)</link:label>
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    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_6D640B0B791DEB107A1CBF2C19403A6B_verboseLabel_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_6D640B0B791DEB107A1CBF2C19403A6B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS</link:label>
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_6D640B0B791DEB107A1CBF2C19403A6B_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_6D640B0B791DEB107A1CBF2C19403A6B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_6D640B0B791DEB107A1CBF2C19403A6B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D719E3C9B09E79155F08BF2C19409BDF_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D719E3C9B09E79155F08BF2C19409BDF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from operating activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D719E3C9B09E79155F08BF2C19409BDF_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D719E3C9B09E79155F08BF2C19409BDF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D719E3C9B09E79155F08BF2C19409BDF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D719E3C9B09E79155F08BF2C19409BDF" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D719E3C9B09E79155F08BF2C19409BDF" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_324152A70DBD75A3B720BF2C194067C2_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_324152A70DBD75A3B720BF2C194067C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_324152A70DBD75A3B720BF2C194067C2_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_324152A70DBD75A3B720BF2C194067C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_324152A70DBD75A3B720BF2C194067C2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_324152A70DBD75A3B720BF2C194067C2" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_324152A70DBD75A3B720BF2C194067C2" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_1A0DA1FF0544B49C8614BF2C19406335_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_1A0DA1FF0544B49C8614BF2C19406335" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from investing activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_1A0DA1FF0544B49C8614BF2C19406335_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_1A0DA1FF0544B49C8614BF2C19406335" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_1A0DA1FF0544B49C8614BF2C19406335" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_1A0DA1FF0544B49C8614BF2C19406335" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_1A0DA1FF0544B49C8614BF2C19406335" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_B4D1834B4CD5BFDECD21BF2C1940E782_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_B4D1834B4CD5BFDECD21BF2C1940E782" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Capital expenditures</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_B4D1834B4CD5BFDECD21BF2C1940E782_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_B4D1834B4CD5BFDECD21BF2C1940E782" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Productive Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_B4D1834B4CD5BFDECD21BF2C1940E782" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireProductiveAssets_B4D1834B4CD5BFDECD21BF2C1940E782" xlink:to="lab_us-gaap_PaymentsToAcquireProductiveAssets_B4D1834B4CD5BFDECD21BF2C1940E782" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInRestrictedCash_A3CFDFC870DA039CA811BF2C1940332A_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInRestrictedCash_A3CFDFC870DA039CA811BF2C1940332A" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Change in restricted cash</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInRestrictedCash" xlink:label="loc_us-gaap_IncreaseDecreaseInRestrictedCash_A3CFDFC870DA039CA811BF2C1940332A" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecurities_0878528829A3A17A033ABF2C1940F7E1" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_5B319D85F23348B75850BF2C194080EC_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_5B319D85F23348B75850BF2C194080EC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_5B319D85F23348B75850BF2C194080EC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_5B319D85F23348B75850BF2C194080EC" xlink:to="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_5B319D85F23348B75850BF2C194080EC" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_902B1BD9471F150CBAB1BF2C1941E7C3_netLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_902B1BD9471F150CBAB1BF2C1941E7C3" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by (used in) investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_902B1BD9471F150CBAB1BF2C1941E7C3_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_902B1BD9471F150CBAB1BF2C1941E7C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_902B1BD9471F150CBAB1BF2C1941E7C3" xlink:type="locator" />
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    <link:label id="lab_kalu_StartingJulyTwoThousandTenUntilJulyTwoThousandFifteenMember_93567E892F31919CA96641E19F66D72B_terseLabel_en-US" xlink:label="lab_kalu_StartingJulyTwoThousandTenUntilJulyTwoThousandFifteenMember_93567E892F31919CA96641E19F66D72B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Starting July 2010</link:label>
    <link:label id="lab_kalu_StartingJulyTwoThousandTenUntilJulyTwoThousandFifteenMember_93567E892F31919CA96641E19F66D72B_label_en-US" xlink:label="lab_kalu_StartingJulyTwoThousandTenUntilJulyTwoThousandFifteenMember_93567E892F31919CA96641E19F66D72B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Starting July Two Thousand Ten Until July Two Thousand Fifteen [Member]</link:label>
    <link:label id="lab_kalu_StartingJulyTwoThousandTenUntilJulyTwoThousandFifteenMember_93567E892F31919CA96641E19F66D72B_documentation_en-US" xlink:label="lab_kalu_StartingJulyTwoThousandTenUntilJulyTwoThousandFifteenMember_93567E892F31919CA96641E19F66D72B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Starting july two thousand ten until july two thousand fifteen.</link:label>
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    <link:label id="lab_kalu_StartingJulyTwoThousandFifteenMember_44B4CE380D8F9557C98841E1D62F3E82_terseLabel_en-US" xlink:label="lab_kalu_StartingJulyTwoThousandFifteenMember_44B4CE380D8F9557C98841E1D62F3E82" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Starting July 2015</link:label>
    <link:label id="lab_kalu_StartingJulyTwoThousandFifteenMember_44B4CE380D8F9557C98841E1D62F3E82_label_en-US" xlink:label="lab_kalu_StartingJulyTwoThousandFifteenMember_44B4CE380D8F9557C98841E1D62F3E82" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Starting July Two Thousand Fifteen [Member]</link:label>
    <link:label id="lab_kalu_StartingJulyTwoThousandFifteenMember_44B4CE380D8F9557C98841E1D62F3E82_documentation_en-US" xlink:label="lab_kalu_StartingJulyTwoThousandFifteenMember_44B4CE380D8F9557C98841E1D62F3E82" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Starting July two thousand fifteen.</link:label>
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    <link:label id="lab_kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember_944B630B4C1784B135F341E19F9B0D62_terseLabel_en-US" xlink:label="lab_kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember_944B630B4C1784B135F341E19F9B0D62" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Newark, Ohio and Spokane, Washington facilities</link:label>
    <link:label id="lab_kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember_944B630B4C1784B135F341E19F9B0D62_label_en-US" xlink:label="lab_kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember_944B630B4C1784B135F341E19F9B0D62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Newark Ohio And Spokane Washington Facilities Member</link:label>
    <link:label id="lab_kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember_944B630B4C1784B135F341E19F9B0D62_documentation_en-US" xlink:label="lab_kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember_944B630B4C1784B135F341E19F9B0D62" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Newark Ohio and Spokane Washington Facilities Member.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember" xlink:label="loc_kalu_NewarkOhioAndSpokaneWashingtonFacilitiesMember_944B630B4C1784B135F341E19F9B0D62" xlink:type="locator" />
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    <link:label id="lab_kalu_FlorenceAlabamaFacilityMember_A3A9275998007B1CD27C41E213C39E50_terseLabel_en-US" xlink:label="lab_kalu_FlorenceAlabamaFacilityMember_A3A9275998007B1CD27C41E213C39E50" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Florence, Alabama facility</link:label>
    <link:label id="lab_kalu_FlorenceAlabamaFacilityMember_A3A9275998007B1CD27C41E213C39E50_label_en-US" xlink:label="lab_kalu_FlorenceAlabamaFacilityMember_A3A9275998007B1CD27C41E213C39E50" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Florence Alabama Facility Member</link:label>
    <link:label id="lab_kalu_FlorenceAlabamaFacilityMember_A3A9275998007B1CD27C41E213C39E50_documentation_en-US" xlink:label="lab_kalu_FlorenceAlabamaFacilityMember_A3A9275998007B1CD27C41E213C39E50" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Florence Alabama Facility Member.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_FlorenceAlabamaFacilityMember" xlink:label="loc_kalu_FlorenceAlabamaFacilityMember_A3A9275998007B1CD27C41E213C39E50" xlink:type="locator" />
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    <link:label id="lab_kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans_98102258A5421DC2EF1E41E28CB8FEB1_terseLabel_en-US" xlink:label="lab_kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans_98102258A5421DC2EF1E41E28CB8FEB1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated annual contribution to pension and other postretirement benefit plans</link:label>
    <link:label id="lab_kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans_98102258A5421DC2EF1E41E28CB8FEB1_label_en-US" xlink:label="lab_kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans_98102258A5421DC2EF1E41E28CB8FEB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Estimated Annual Contribution to Pension and Other Postretirement Benefit Plans</link:label>
    <link:label id="lab_kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans_98102258A5421DC2EF1E41E28CB8FEB1_documentation_en-US" xlink:label="lab_kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans_98102258A5421DC2EF1E41E28CB8FEB1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated annual contribution to pension and other postretirement benefit plans.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans" xlink:label="loc_kalu_EstimatedAnnualContributionToPensionAndOtherPostretirementBenefitPlans_98102258A5421DC2EF1E41E28CB8FEB1" xlink:type="locator" />
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    <link:label id="lab_kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee_43124C60F2E908AF5EF241E149DAF9C7_terseLabel_en-US" xlink:label="lab_kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee_43124C60F2E908AF5EF241E149DAF9C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Monthly contributions per hour worked by each bargaining unit employee</link:label>
    <link:label id="lab_kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee_43124C60F2E908AF5EF241E149DAF9C7_label_en-US" xlink:label="lab_kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee_43124C60F2E908AF5EF241E149DAF9C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Monthly Contributions Per Hour Worked By Each Bargaining Unit Employee</link:label>
    <link:label id="lab_kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee_43124C60F2E908AF5EF241E149DAF9C7_documentation_en-US" xlink:label="lab_kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee_43124C60F2E908AF5EF241E149DAF9C7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Monthly contributions per hour worked by each bargaining unit employee.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee" xlink:label="loc_kalu_MonthlyContributionsPerHourWorkedByEachBargainingUnitEmployee_43124C60F2E908AF5EF241E149DAF9C7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_A6931943F0899E9B5E34BF21BDBB15EF_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_A6931943F0899E9B5E34BF21BDBB15EF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Derivative Financial Instruments and Related Hedging Programs</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_A6931943F0899E9B5E34BF21BDBB15EF_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_A6931943F0899E9B5E34BF21BDBB15EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments and Hedging Activities Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_A6931943F0899E9B5E34BF21BDBB15EF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AccountingPoliciesAbstract_9D91D0E3AC9D4FC1DE1A3B7323EA1F5D_label_en-US" xlink:label="lab_us-gaap_AccountingPoliciesAbstract_9D91D0E3AC9D4FC1DE1A3B7323EA1F5D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_9D91D0E3AC9D4FC1DE1A3B7323EA1F5D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_19C0FEFCEADDD6D48D543B7323EA4911_verboseLabel_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock_19C0FEFCEADDD6D48D543B7323EA4911" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of Significant Accounting Policies</link:label>
    <link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_19C0FEFCEADDD6D48D543B7323EA4911_label_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock_19C0FEFCEADDD6D48D543B7323EA4911" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_19C0FEFCEADDD6D48D543B7323EA4911" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingencies_FD4123B51ABFED36DB56BADC32314AA2_verboseLabel_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingencies_FD4123B51ABFED36DB56BADC32314AA2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Environmental accrual</link:label>
    <link:label id="lab_us-gaap_AccrualForEnvironmentalLossContingencies_FD4123B51ABFED36DB56BADC32314AA2_label_en-US" xlink:label="lab_us-gaap_AccrualForEnvironmentalLossContingencies_FD4123B51ABFED36DB56BADC32314AA2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrual for Environmental Loss Contingencies</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_FD4123B51ABFED36DB56BADC32314AA2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingencies_FD4123B51ABFED36DB56BADC32314AA2" xlink:to="lab_us-gaap_AccrualForEnvironmentalLossContingencies_FD4123B51ABFED36DB56BADC32314AA2" xlink:type="arc" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear_A7BE559DD3A05C615D02BADC3231CEB0" xlink:type="locator" />
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    <link:loc xlink:href="kalu-20120630.xsd#kalu_PotentialAdditionalEnvironmentalCosts" xlink:label="loc_kalu_PotentialAdditionalEnvironmentalCosts_B3E9CBDA03F6B759AB2DBADC3232BC45" xlink:type="locator" />
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    <link:loc xlink:href="kalu-20120630.xsd#kalu_ExpectedPeriodRelatedToRemediationExpendituresForEnvironmentalContingencies" xlink:label="loc_kalu_ExpectedPeriodRelatedToRemediationExpendituresForEnvironmentalContingencies_226D3A104AEDEBDDC762BADC3237D92F" xlink:type="locator" />
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    <link:label id="lab_kalu_ExpectedPeriodRelatedToExcessEnvironmentalCostsOverCurrentAccruals_A09800B30BB2EB4FD43BBADC3237FF3B_terseLabel_en-US" xlink:label="lab_kalu_ExpectedPeriodRelatedToExcessEnvironmentalCostsOverCurrentAccruals_A09800B30BB2EB4FD43BBADC3237FF3B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected period related to excess environmental costs over current accruals</link:label>
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    <link:label id="lab_kalu_TimePeriodWithinWhichCompanysRecordedEstimateOfItsObligationMayChange_FB7BF09AF0F6CB6D2994BADC323874FC_documentation_en-US" xlink:label="lab_kalu_TimePeriodWithinWhichCompanysRecordedEstimateOfItsObligationMayChange_FB7BF09AF0F6CB6D2994BADC323874FC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Time period within which Company's recorded estimate of its obligation may change.</link:label>
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    <link:label id="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_1DCD6BDBDCD860203FC7BA1EF36F6113_label_en-US" xlink:label="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_1DCD6BDBDCD860203FC7BA1EF36F6113" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Compensation and Retirement Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_1DCD6BDBDCD860203FC7BA1EF36F6113" xlink:type="locator" />
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    <link:label id="lab_kalu_NonEmployeeDirectorsMember_89623643882603A1CCA6BAD8E101FA1C_documentation_en-US" xlink:label="lab_kalu_NonEmployeeDirectorsMember_89623643882603A1CCA6BAD8E101FA1C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non Employee Directors.</link:label>
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    <link:label id="lab_kalu_ExecutiveOfficersAndSeniorManagementMember_A9C4C395FCACC07AF48ABAD8E101E433_terseLabel_en-US" xlink:label="lab_kalu_ExecutiveOfficersAndSeniorManagementMember_A9C4C395FCACC07AF48ABAD8E101E433" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Executive officers and senior management</link:label>
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    <link:label id="lab_kalu_ExecutiveOfficersAndSeniorManagementMember_A9C4C395FCACC07AF48ABAD8E101E433_documentation_en-US" xlink:label="lab_kalu_ExecutiveOfficersAndSeniorManagementMember_A9C4C395FCACC07AF48ABAD8E101E433" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Executive Officers And Senior Management.</link:label>
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    <link:label id="lab_kalu_OtherKeyEmployeesMember_CA5631179B6331F00F9BBAD8E10123E5_terseLabel_en-US" xlink:label="lab_kalu_OtherKeyEmployeesMember_CA5631179B6331F00F9BBAD8E10123E5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other key employees</link:label>
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    <link:label id="lab_kalu_OtherKeyEmployeesMember_CA5631179B6331F00F9BBAD8E10123E5_documentation_en-US" xlink:label="lab_kalu_OtherKeyEmployeesMember_CA5631179B6331F00F9BBAD8E10123E5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other key Employees.</link:label>
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    <link:label id="lab_kalu_AnniversaryDateAxis_98D7774B4B19F034EF54BAD8E1012A5C_label_en-US" xlink:label="lab_kalu_AnniversaryDateAxis_98D7774B4B19F034EF54BAD8E1012A5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Anniversary Date [Axis]</link:label>
    <link:label id="lab_kalu_AnniversaryDateAxis_98D7774B4B19F034EF54BAD8E1012A5C_documentation_en-US" xlink:label="lab_kalu_AnniversaryDateAxis_98D7774B4B19F034EF54BAD8E1012A5C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Anniversary Period [Axis]</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_AnniversaryDateAxis" xlink:label="loc_kalu_AnniversaryDateAxis_98D7774B4B19F034EF54BAD8E1012A5C" xlink:type="locator" />
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    <link:label id="lab_kalu_AnniversaryPeriodDomain_CEB2456CBA87973D4A83BAD8E1012965_terseLabel_en-US" xlink:label="lab_kalu_AnniversaryPeriodDomain_CEB2456CBA87973D4A83BAD8E1012965" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Anniversary Period [Domain]</link:label>
    <link:label id="lab_kalu_AnniversaryPeriodDomain_CEB2456CBA87973D4A83BAD8E1012965_label_en-US" xlink:label="lab_kalu_AnniversaryPeriodDomain_CEB2456CBA87973D4A83BAD8E1012965" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Anniversary Period [Domain]</link:label>
    <link:label id="lab_kalu_AnniversaryPeriodDomain_CEB2456CBA87973D4A83BAD8E1012965_documentation_en-US" xlink:label="lab_kalu_AnniversaryPeriodDomain_CEB2456CBA87973D4A83BAD8E1012965" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Anniversary Period [Domain]</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_AnniversaryPeriodDomain" xlink:label="loc_kalu_AnniversaryPeriodDomain_CEB2456CBA87973D4A83BAD8E1012965" xlink:type="locator" />
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    <link:label id="lab_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C_verboseLabel_en-US" xlink:label="lab_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">First anniversary of the grant date</link:label>
    <link:label id="lab_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C_label_en-US" xlink:label="lab_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Anniversary One [Member]</link:label>
    <link:label id="lab_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C_documentation_en-US" xlink:label="lab_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Anniversary One.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_AnniversaryOneMember" xlink:label="loc_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C" xlink:to="lab_kalu_AnniversaryOneMember_A0A9321CE2FBCB0C2F15BAD8E101DB5C" xlink:type="arc" />
    <link:label id="lab_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2_verboseLabel_en-US" xlink:label="lab_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Second anniversary of the grant date</link:label>
    <link:label id="lab_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2_label_en-US" xlink:label="lab_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Anniversary Two [Member]</link:label>
    <link:label id="lab_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2_documentation_en-US" xlink:label="lab_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Anniversary Two.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_AnniversaryTwoMember" xlink:label="loc_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2" xlink:to="lab_kalu_AnniversaryTwoMember_FD4968369932ED1799B9BAD8E102EAB2" xlink:type="arc" />
    <link:label id="lab_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D_terseLabel_en-US" xlink:label="lab_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Third anniversary of the grant date</link:label>
    <link:label id="lab_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D_label_en-US" xlink:label="lab_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Anniversary Three [Member]</link:label>
    <link:label id="lab_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D_documentation_en-US" xlink:label="lab_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Anniversary Three.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_AnniversaryThreeMember" xlink:label="loc_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D" xlink:to="lab_kalu_AnniversaryThreeMember_9C1E166DED9F3BBE95C1BAD8E102329D" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_95D1EE2F0A3A3C6E195BBAD8E10264D7_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_95D1EE2F0A3A3C6E195BBAD8E10264D7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_95D1EE2F0A3A3C6E195BBAD8E10264D7_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_95D1EE2F0A3A3C6E195BBAD8E10264D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_95D1EE2F0A3A3C6E195BBAD8E10264D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_95D1EE2F0A3A3C6E195BBAD8E10264D7" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_95D1EE2F0A3A3C6E195BBAD8E10264D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_38CB2867DCE4B88240A7BAD8E102438B_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_38CB2867DCE4B88240A7BAD8E102438B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Number of common shares authorized for issuance under Equity Incentive Plan</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_38CB2867DCE4B88240A7BAD8E102438B_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_38CB2867DCE4B88240A7BAD8E102438B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_38CB2867DCE4B88240A7BAD8E102438B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_38CB2867DCE4B88240A7BAD8E102438B" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_38CB2867DCE4B88240A7BAD8E102438B" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_6B791880689A5BF4409BBAD8E102C0C3_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_6B791880689A5BF4409BBAD8E102C0C3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Number of common shares available for additional awards under Equity Incentive Plan</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_6B791880689A5BF4409BBAD8E102C0C3_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_6B791880689A5BF4409BBAD8E102C0C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_6B791880689A5BF4409BBAD8E102C0C3" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod_EDBE2CC609422C7E6C03BAD8E102D171" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_B879084482C9886E1B2EBAD8E10245EE" xlink:type="locator" />
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    <link:label id="lab_kalu_OtherAccruedLiabilitiesAbstract_DD00300C3A5313548014A0A794BA8667_label_en-US" xlink:label="lab_kalu_OtherAccruedLiabilitiesAbstract_DD00300C3A5313548014A0A794BA8667" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Accrued Liabilities [Abstract]</link:label>
    <link:label id="lab_kalu_OtherAccruedLiabilitiesAbstract_DD00300C3A5313548014A0A794BA8667_documentation_en-US" xlink:label="lab_kalu_OtherAccruedLiabilitiesAbstract_DD00300C3A5313548014A0A794BA8667" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Accrued Liabilities Abstract.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_OtherAccruedLiabilitiesAbstract" xlink:label="loc_kalu_OtherAccruedLiabilitiesAbstract_DD00300C3A5313548014A0A794BA8667" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DerivativeLiabilitiesCurrent_13F498065B5055B85CCAA0A794BA2AE1_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilitiesCurrent_13F498065B5055B85CCAA0A794BA2AE1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current derivative liabilities - Notes 10 and 11</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilitiesCurrent_13F498065B5055B85CCAA0A794BA2AE1_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilitiesCurrent_13F498065B5055B85CCAA0A794BA2AE1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DerivativeLiabilitiesCurrent" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_13F498065B5055B85CCAA0A794BA2AE1" xlink:type="locator" />
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    <link:label id="lab_kalu_OptionPremiumsReceived_6FA2F530A212D0E267BEA0A794BAD6E9_verboseLabel_en-US" xlink:label="lab_kalu_OptionPremiumsReceived_6FA2F530A212D0E267BEA0A794BAD6E9" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current portion of option premiums received - Notes 10 and 11</link:label>
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    <link:label id="lab_kalu_OptionPremiumsReceived_6FA2F530A212D0E267BEA0A794BAD6E9_documentation_en-US" xlink:label="lab_kalu_OptionPremiumsReceived_6FA2F530A212D0E267BEA0A794BAD6E9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Option premiums received.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_OptionPremiumsReceived" xlink:label="loc_kalu_OptionPremiumsReceived_6FA2F530A212D0E267BEA0A794BAD6E9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_kalu_OptionPremiumsReceived_6FA2F530A212D0E267BEA0A794BAD6E9" xlink:to="lab_kalu_OptionPremiumsReceived_6FA2F530A212D0E267BEA0A794BAD6E9" xlink:type="arc" />
    <link:label id="lab_us-gaap_BankOverdrafts_AE6788B51ACF26935CC5A1A74506C0D2_terseLabel_en-US" xlink:label="lab_us-gaap_BankOverdrafts_AE6788B51ACF26935CC5A1A74506C0D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued book overdraft (uncleared cash disbursement)</link:label>
    <link:label id="lab_us-gaap_BankOverdrafts_AE6788B51ACF26935CC5A1A74506C0D2_label_en-US" xlink:label="lab_us-gaap_BankOverdrafts_AE6788B51ACF26935CC5A1A74506C0D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank Overdrafts</link:label>
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    <link:label id="lab_kalu_AccruedIncomeTaxesAndTaxesPayableCurrent_7C11DB901845B2433271A0A794BA21B7_terseLabel_en-US" xlink:label="lab_kalu_AccruedIncomeTaxesAndTaxesPayableCurrent_7C11DB901845B2433271A0A794BA21B7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Taxes payable</link:label>
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    <link:label id="lab_kalu_AccruedIncomeTaxesAndTaxesPayableCurrent_7C11DB901845B2433271A0A794BA21B7_documentation_en-US" xlink:label="lab_kalu_AccruedIncomeTaxesAndTaxesPayableCurrent_7C11DB901845B2433271A0A794BA21B7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued income taxes and taxes payable current.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_AccruedIncomeTaxesAndTaxesPayableCurrent" xlink:label="loc_kalu_AccruedIncomeTaxesAndTaxesPayableCurrent_7C11DB901845B2433271A0A794BA21B7" xlink:type="locator" />
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    <link:label id="lab_kalu_AccruedFreight_2B0AD9AC07ED20657F07A0A794BA2DAE_label_en-US" xlink:label="lab_kalu_AccruedFreight_2B0AD9AC07ED20657F07A0A794BA2DAE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued freight</link:label>
    <link:label id="lab_kalu_AccruedFreight_2B0AD9AC07ED20657F07A0A794BA2DAE_documentation_en-US" xlink:label="lab_kalu_AccruedFreight_2B0AD9AC07ED20657F07A0A794BA2DAE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accrued freight.</link:label>
    <link:loc xlink:href="kalu-20120630.xsd#kalu_AccruedFreight" xlink:label="loc_kalu_AccruedFreight_2B0AD9AC07ED20657F07A0A794BA2DAE" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AccruedEnvironmentalLossContingenciesCurrent_070090667F22AF32FD38A0A794BAEE90_verboseLabel_en-US" xlink:label="lab_us-gaap_AccruedEnvironmentalLossContingenciesCurrent_070090667F22AF32FD38A0A794BAEE90" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Short-term environmental accrual - Note 9</link:label>
    <link:label id="lab_us-gaap_AccruedEnvironmentalLossContingenciesCurrent_070090667F22AF32FD38A0A794BAEE90_label_en-US" xlink:label="lab_us-gaap_AccruedEnvironmentalLossContingenciesCurrent_070090667F22AF32FD38A0A794BAEE90" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Environmental Loss Contingencies, Current</link:label>
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    <link:label id="lab_us-gaap_InterestPayableCurrent_E727C2E93D9F83C358A4A0A794BADEED_label_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_E727C2E93D9F83C358A4A0A794BADEED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Payable, Current</link:label>
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    <link:label id="lab_kalu_OtherAccruedLiability_2431BCB0D0C0D4CEE9F2A0A794BA5E56_verboseLabel_en-US" xlink:label="lab_kalu_OtherAccruedLiability_2431BCB0D0C0D4CEE9F2A0A794BA5E56" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
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    <link:loc xlink:href="kalu-20120630.xsd#kalu_OtherAccruedLiability" xlink:label="loc_kalu_OtherAccruedLiability_2431BCB0D0C0D4CEE9F2A0A794BA5E56" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_F2CF09BD76EEE9C02C78A0A794BAEFD6_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_F2CF09BD76EEE9C02C78A0A794BAEFD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Noncurrent [Abstract]</link:label>
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    <link:loc xlink:href="kalu-20120630.xsd#kalu_OptionPremiumsReceivedNoncurrent" xlink:label="loc_kalu_OptionPremiumsReceivedNoncurrent_63A39452D9980C4AF4EDA0A794BAF8D3" xlink:type="locator" />
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