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1、Designation:A123/A123M–02StandardSpecificationforZinc(Hot-DipGalvanized)CoatingsonIronandSteel1ProductsThisstandardisissuedunderthe®xeddesignationA123/A123M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrev
2、ision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scopeshallbedoneus
3、ingthemetricequivalentofthetestor1.1Thisspeci®cationcoverstherequirementsforzincinspectionmethodasappropriate.InthecaseofordersinSIcoating(galvanizing)bythehot-dipprocessonironandsteelunits,suchshallbestatedtothegalvanizerwhentheorderisproductsmadefr
4、omrolledpressedandforgedshapes,castings,placed.plates,bars,andstrips.2.ReferencedDocuments1.2Thisspeci®cationcoversbothunfabricatedproductsandfabricatedproducts,forexample,assembledsteelproducts,2.1ASTMStandards:structuralsteelfabrications,largetubes
5、alreadybentorweldedA47/A47MSpeci®cationforFerriticMalleableIronCast-ings2beforegalvanizing,andwireworkfabricatedfromuncoatedsteelwire.Thisspeci®cationalsocoverssteelforgingsandironA90/A90MTestMethodforWeight[Mass]ofCoatingonIronandSteelArticleswithZi
6、ncorZinc-AlloyCoatings3castingsincorporatedintopiecesfabricatedbeforegalvanizingorwhicharetoolargetobecentrifuged(orotherwisehandledA143PracticeforSafeguardingAgainstEmbrittlementoftoremoveexcessgalvanizingbathmetal).Hot-DipGalvanizedStructuralSteelP
7、roductsandProce-dureforDetectingEmbrittlement3NOTE1ÐThisspeci®cationcoversthoseproductspreviouslyaddressedA153/A153MSpeci®cationforZincCoating(Hot-Dip)oninSpeci®cationsA123-78andA386-78.3IronandSteelHardware1.3Thisspeci®cationdoesnotapplytowire,pipe,
8、tube,orA384/A384MPracticeforSafeguardingAgainstWarpagesteelsheetwhichisgalvanizedonspecializedorcontinuousandDistortionDuringHot-DipGalvanizingofSteelAs-lines,ortosteellessthan22gage(0.0299in.)[0.76mm]thick.semblies31.4Thegalvanizingofhardwareitemsth
