Designation:A1041/A1041M–04(Reapproved2009)StandardSpecificationforPressureVesselPlates,AlloySteel,HigherStrengthChromium-Molybdenum-Tungsten1ThisstandardisissuedunderthefixeddesignationA1041/A1041M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverschromium-tungsten-molybdenum-vanadium,withorwithouttantalum,alloysteelplatesintendedprimarilyforweldedboilersandpressurevesselsdesignedforelevatedtemperatureservice.1.2Platesareavailableunderthisspecificationintwogradeshavingdifferentalloycontentsasfollows:GradeNominalChromiumContent,%NominalTungstenContent,%NominalMolybdenumContent,%NominalVanadiumContent,%NominalTantalumContent,%3153.001.500.750.25315T3.001.500.750.250.101.3Themaximumthicknessofplatesislimitedonlybythecapacityofthecompositiontomeetthespecifiedmechanicalpropertyrequirements.1.4Thespecificationisexpressedinbothinch-poundunitsandinSIunits;however,unlesstheorderspecifiestheapplicable“M”specificationdesignation(SIunits),theplatesarefurnishedtoinch-poundunits.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.2.ReferencedDocuments2.1ASTMStandards:2A20/A20MSpecificationforGeneralRequirementsforSteelPlatesforPressureVesselsA435/A435MSpecificationforStraight-BeamUltrasonicExaminationofSteelPlatesA577/A577MSpecificationforUltrasonicAngle-BeamExaminationofSteelPlatesA578/A578MSpecificationforStraight-BeamUltrasonicExaminationofRolledSteelPlatesforSpecialApplica-tions3.GeneralRequirements3.1ProductfurnishedtothisspecificationshallconformtoSpecificationA20/A20M,includinganysupplementaryre-quirementsindicatedinthe...
