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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 V2O9PjjkK+724YWFytqTsyhWvVHBNBEw3FvIbC7vmvo5uvaubEXajRSUCuumhNxu
 SR4e6vnlWVuS18GEXCLPWA==

<SEC-DOCUMENT>0001121844-04-000007.txt : 20040614
<SEC-HEADER>0001121844-04-000007.hdr.sgml : 20040611
<ACCEPTANCE-DATETIME>20040614145122
ACCESSION NUMBER:		0001121844-04-000007
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040611
FILED AS OF DATE:		20040614

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMMONWEALTH INDUSTRIES INC/DE/
		CENTRAL INDEX KEY:			0000934747
		STANDARD INDUSTRIAL CLASSIFICATION:	ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
		IRS NUMBER:				133245741
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		500 WEST JEFFERSON STREET
		STREET 2:		PNC PLAZA - 19TH FLOOR
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40202-2823
		BUSINESS PHONE:		502-589-8100

	MAIL ADDRESS:	
		STREET 1:		500 WEST JEFFERSON STREET
		STREET 2:		PNC PLAZA - 19TH FLOOR
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40202-2823

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMMONWEALTH ALUMINUM CORP
		DATE OF NAME CHANGE:	19941228

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KAMINSKI MARK V
		CENTRAL INDEX KEY:			0001121844
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25642
		FILM NUMBER:		04861172

	BUSINESS ADDRESS:	
		STREET 1:		C/O COMMON WEALTH INDUSTRIES INC
		STREET 2:		500 WEST JEFFERSON SUITE 1900
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40202
		BUSINESS PHONE:		5025898100

	MAIL ADDRESS:	
		STREET 1:		C/O COMMONWEALTH INDUSTRIES INC
		STREET 2:		500 WEST JEFFERSON SUITE 1900
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40202
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-06-11</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000934747</issuerCik>
        <issuerName>COMMONWEALTH INDUSTRIES INC/DE/</issuerName>
        <issuerTradingSymbol>CMIN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001121844</rptOwnerCik>
            <rptOwnerName>KAMINSKI MARK V</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>500 W. JEFFERSON STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1900</rptOwnerStreet2>
            <rptOwnerCity>LOUISVILLE</rptOwnerCity>
            <rptOwnerState>KY</rptOwnerState>
            <rptOwnerZipCode>40202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Former Director, Pres. &amp; CEO</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>146788</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7939.28</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>778228</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>778228</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is being filed for the purpose of reporting the termination of insider status.  The reported holdings reflect Mr. Kaminski's beneficial ownership as of the date of termination of service (June 11, 2004).</footnote>
        <footnote id="F2">Options became vested on the date of termination of service (June 11, 2004) and will expire in accordance with an agreement entered into between the Issuer and Mr. Kaminski.</footnote>
        <footnote id="F3">Exercise prices have previously been reported.  Refer to Footnote 1 above.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Lenna Ruth Macdonald (POA)</signatureName>
        <signatureDate>2004-06-11</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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