Designation:A285/A285M−12StandardSpecificationforPressureVesselPlates,CarbonSteel,Low-andIntermediate-TensileStrength1ThisstandardisissuedunderthefixeddesignationA285/A285M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisspecification2coverscarbonsteelplatesoflow-andintermediate-tensilestrengthswhichmaybemadebykilled,semi-killed,capped,orrimmedsteelpracticesattheproducer’soption.Theseplatesareintendedforfusion-weldedpressurevessels.1.2Platesunderthisspecificationareavailableinthreegradeshavingdifferentstrengthlevelsasfollows:GradeTensileStrength,ksi[MPa]A45–65[310–450]B50–70[345–485]C55–75[380–515]1.3Themaximumthicknessofplatesunderthisspecifica-tion,forreasonsofinternalsoundness,islimitedtoamaximumthicknessof2in.[50mm]forallgrades.NOTE1—ForkilledcarbonsteelsonlyrefertothefollowingASTMspecifications:3A299/A299MPressureVesselPlates,CarbonSteel,Manganese-Silicon.A515/A515MPressureVesselPlates,CarbonSteel,forIntermediate-andHigher-TemperatureServiceA516/A516MPressureVesselPlates,CarbonSteel,forModerate-andLower-TemperatureService.1.4Forplatesproducedfromcoilandfurnishedwithoutheattreatmentorwithstressrelievingonly,theadditionalrequirements,includingadditionaltestingrequirementsandthereportingofadditionaltestresults,ofSpecificationA20/A20Mapply.1.5Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecifi-cation.2.ReferencedDocuments2.1ASTMStandards:3A20/A20MSpecificationforGeneralRequirementsforSteelPlatesforPressureVessels3.General...
