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1、INTERNATIONALISOSTANDARD4997Fifthedition2015-02-01Cold-reducedcarbonsteelsheetofstructuralqualityT?lesenacieraucarbonelaminéesàrofid,dequalitédestinéeàlaconstructionReferencenumberISO4997:2015(E)?ISO2015InternationalOrganizationforStandardizationISO4997:2015(E)COPYRIGHTPROTECTEDDOCUMENT?ISO20
2、15Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO
3、’smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostale56?CH-1211Geneva20Tel.+41227490111Fax+41227490947E-mailcopyright@iso.orgWebwww.iso.orgPublishedinSwitzerlandi?ISO2015–AllrightsreservedInternationalOrganizationforStandardizationISO4997:2015(E)ContentsPageForeword.....iv1Scop
4、e.....12Normativereferences....13Tedaremndsfinitions....14Dimensions.....25Conditionsofmanufacture....25.1Steelmaking....25.2Chemicalcomposition....25.3Chemicalanalysis....35.3.1Heatanalysis....35.3.2Productanalysis....35.4Weldability....35.5Application....45.6Mechanicalproperties....45.7Surf
5、acequality....45.7.1General....45.7.2SurfacequalityA(unexposed)...45.7.3SurfacequalityB(exposed)...45.8Surfacefinish....55.9Suitabilityforsurfacecoating...55.10Oiling......56Dimensionalandshapetolerances...57Tensile-testsampling....58Tensiletest.....59Retests.....59.1Machiningandflaws....59.2
6、Elongation....59.3Additionaltests....610Resubmission....611Workmanship....612Inspectionandacceptance....613Coilsize.....614Marking.....615Informationtobeprovidedbythepurchaser...7Bibliography.....8?ISO2015–AlrightsreservediInternationalOrganizationforStandardizationISO4997:2015(E)ForewordISO(
7、theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhi
