Designation:A781/A781M−17StandardSpecificationforCastings,SteelandAlloy,CommonRequirements,forGeneralIndustrialUse1ThisstandardisissuedunderthefixeddesignationA781/A781M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1ThisspecificationcoversagroupofrequirementsthataremandatoryrequirementsofthefollowingsteelcastingspecificationsissuedbyASTM.Iftheproductspecificationspecifiesdifferentrequirements,theproductspecificationshallprevail.ASTMDesignationTitleofSpecificationA27/A27MSteelCastings,Carbon,forGeneralApplicationA128/A128MSteelCastings,AusteniticManganeseA148/A148MSteelCastings,HighStrength,forStructuralPur-posesA297/A297MSteelCastings,Iron-ChromiumandIron-Chromium-Nickel,HeatResistantforGeneralApplicationA447/A447MSteelCastings,Chromium-Nickel-IronAlloy(25-12Class),forHigh-TemperatureServiceA494/A494MCastings,NickelandNickelAlloyA560/A560MCastings,Chromium-NickelAlloyA743/A743MCastings,Iron-Chromium,Iron-Chromium-Nickel,CorrosionResistant,forGeneralApplicationA744/A744MCastings,Iron-Chromium-Nickel,CorrosionResistant,forSevereServiceA747/A747MSteelCastings,Stainless,PrecipitationHarden-ingA890/A890MCastings,Iron-Chromium-Nickel-MolybdenumCorrosion-Resistant,Duplex(Austenitic/Ferritic)forGeneralApplicationA915/A915MSteelCastings,CarbonandAlloy,ChemicalRe-quirementsSimilartoStandardWroughtGradesA958/A958MSteelCastings,CarbonandAlloy,withTensileRequirements,ChemicalRequirementsSimiliartoStandardWroughtGradesA1002Castings,Nickel-AluminumOrderedAlloy1.2Thisspecificationalsocoversagroupofsupplementaryrequirementsthatmaybeappliedtotheabovespecificationsasindicatedtherein.Theseareprovidedforusewhenadditionaltestingorinspectionisdesiredandapplyonlywhenspecifiedindividuallybythepurchaserintheorder.1.3Therequirementsoftheindividualmaterialspecifica-tionan...
