Product Code:SAE AS9312
Title:Stud, Shouldered and Stepped, Hexagon Wrenching, Drilled, Steel, .250-28 Unf-3a X .375-24 Unf-3a
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:No scope available.【英文标准名称】:StandardGuideforSpecifyingHarmonizedStandardGradeCompositionsforWroughtStainlessSteels
【原文标准名称】:锻制不锈钢用说明协调标准等级构成的标准指南
【标准号】:ASTMA959-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:A01.17
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:奥氏体不锈钢;铁素体不锈钢;协调的不锈钢组成成份;马氏体不锈钢
【英文主题词】:austeniticstainlesssteels;Ferriticstainlesssteel;Harmonizedstainlesssteelcompositions;Martensiticstainlesssteel
【摘要】:ItisanticipatedthattheASTMSubcommitteesA01.06,A01.10,A01.17,A01.22,andA01.28willusethestandardcompositionlimitslistedinthisguideforthegradesidentifiedbythecorrespondingUNSdesignationintheproductspecificationunlessthereisaspecifictechnicaljustificationfordoingotherwise.Thecompositionsinthisguideshallnotbeconsideredaschemicalrequirementsforanyparticularproductuntiladoptedbythesubcommitteeoverseeingthatproduct.Assumingthatuniformcompositionsamongthemanyproductstandardsforstainlesssteelaredesirable,thecompositionlimitsprovidedinthisstandardaretobeusedasguidesindetermininglimitsforeachoftheelementsincludedinthetotalcompositionofeachgrade.Thecompositionlimitshavebeenestablishedwiththeintentthateachproductsubcommitteewillfinditnecessarytorequireonlyaminimumnumberofchangestoreflectspecifictechnicaleffects.Section5liststhegeneralguidelinesfollowedfordeterminingthelimitsforeachelement;thelimitsestablishedinthisguidearebasedontheseguidelines.NotincludedinthisstandardstainlesssteelgradeharmonizationeffortisanattempttounifystainlesssteelcompositionsinASTMproductstandardsbyanymeansotherthanrecognizingcurrentindustrypractices.1.1ThisguideprovidesaguidetoASTMSubcommitteesA01.06,A01.10,A01.17,A01.22,andA01.28forspecifyingchemicalcompositionlimitsofwroughtstainlesssteels.Itisintendedthattheserecommendedgradecompositionlimitsbesuitableforadoptionbyotherstandardizationbodiesthatpreparestandardsforstainlesssteelproducts.1.2IncludedinthisguidearetherecommendationsfordeterminingthenumberofsignificantfiguresforspecifyingchemicalcompositionfromTestMethods,Practices,andTerminologyA751.1.3AllstainlesssteelUNSnumbersandthestainlesssteelgradesinallstandardsoverseenbytheaforementionedASTMsubcommitteeshavebeenincluded,exceptthosegradesapplicabletorestrictedspecialendusesandalloyscontaininglessthan10.5%minimumchromium.1.4Notaddressedareminorcompositionmodificationswhichaspecificproductsubcommitteemayfindnecessarytoaccommodateeffectsofnormalprocessingortoenhancefabricabilitybytheproduceroruser,orboth.1.5Alsonotgenerallyaddressed(exceptwhenestablishedbyASTMproductsubcommittees)isacompleterationalizationofalllimits,especiallywhensuchwouldconflictwithlong-standingpracticesandisnotjustifiedbyspecialtechnicaleffect.1.6Excludedfromthisguidearecastmaterialandweldingfillermetal.
【中国标准分类号】:
【国际标准分类号】:77_140_20
【页数】:8P.;A4
【正文语种】: