Designation:A576−90b(Reapproved2012)StandardSpecificationforSteelBars,Carbon,Hot-Wrought,SpecialQuality1ThisstandardisissuedunderthefixeddesignationA576;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thisspecificationcovershot-wroughtspecialqualitycarbonsteelbars.Specialqualitybarapplicationsincludeforging,heattreating,colddrawing,machining,andmanystructuraluses.AguidefortheselectionofsteelbarsiscontainedinPracticeA400.1.2ThebarsshallbefurnishedinthegradesspecifiedinTable1.SectionsandsizesofbarsteelavailablearecoveredinSpecificationA29/A29M.Hot-wroughtspecialqualitycarbonsteelbarsareproducedincutlengthsandcoils;themanufac-turershouldbeconsultedregardingsectionsandsizesavailableincoils,producedtoachemicalcomposition.1.3Merchantqualityhot-wroughtcarbonsteelbarsarecoveredinSpecificationA575.1.4Someendusesmayrequiresuperiorsurfacequality,orspecialchemicalrestrictions,metallurgicalcharacteristics,heattreatment,orsurfacefinisheswhichthepurchasermayobtainbydesignatingoneormoreoftheavailableSupplementaryRequirements.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.2.ReferencedDocuments2.1ASTMStandards:2A29/A29MSpecificationforSteelBars,CarbonandAlloy,Hot-Wrought,GeneralRequirementsforA400PracticeforSteelBars,SelectionGuide,Composition,andMechanicalPropertiesA575SpecificationforSteelBars,Carbon,MerchantQual-ity,M-GradesE45TestMethodsforDeterminingtheInclusionContentofSteelE527PracticeforNumberingMetalsandAlloysintheUnifiedNumberingSystem(UNS)2.2SAEStandard:SAEJ1086RecommendedPracticeforNumberingMetalsandAlloys(UNS)33.OrderingInformation3.1Ordersunderthisspecificationshouldincludethefol-lowing,asrequired,todescribeadequatelythedesiredmate-rial:3.1.1Quantity(weightornumberofbars...
