【英文标准名称】:StandardSpecificationforQuenchedandTemperedAlloySteelBolts,Studs,andOtherExternallyThreadedFasteners
【原文标准名称】:淬火和回火合金钢螺栓、螺柱和其它外螺纹紧固件的标准规范
【标准号】:ASTMA354-2007a
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:F16.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:合金钢;螺栓;外螺纹紧固件;紧固件;管道;管;钢;螺柱
【英文主题词】:alloysteel;bolts;steel;studs;Alloysteelboltingmaterialsspecifications;Boltingmaterials;Fasteners(metal)specifications;Steelboltingmaterialsspecifications;Steelfastenersspecifications;Studs(materials/applications)specifications
【摘要】:1.1Thisspecificationcoversthechemicalandmechanicalrequirementsofquenchedandtemperedalloysteelbolts,studs,andotherexternallythreadedfasteners4in.andunderindiameterforapplicationatnormalatmospherictemperatures,wherehighstrengthisrequiredandforlimitedapplicationatelevatedtemperature(Note1).Anyalloysteelcapableofmeetingtheminimummechanicalandchemicalpropertiessetforthinthisspecificationmaybeused.Note18212;Forbolts,studs,orotherexternallythreadedfasteners,tobeusedatelevatedtemperatures,refertoSpecificationA193/A193M.1.2Twolevelsofboltingstrengtharecovered,designatedGradesBCandBD.Selectionwilldependupondesignandthestressesandserviceforwhichtheproductistobeused.Note28212;Quenchedandtemperedalloysteelboltsforstructuralsteeljointsupthrough1x00BD;in.indiameterarecoveredinSpecificationA490.Alloysteelbolts,studs,andotherexternallythreadedfasteners(thatis,heavyhex-structuralboltsover1x00BD;in.,hexbolts,anchorbolts,andcountersunkbolts)exhibitingsimilarmechanicalpropertiestoboltsconformingtoSpecificationA490shallbecoveredbyGradeBDofthisspecification.WhenboltsofGradeBDofthisspecificationareconsideredforpretentionedapplicationsinexcessof50%ofthebolttensilestrength,theadditionalrequirementsofheadsize,maximumtensilestrength,nutsizeandstrength,washerhardness,tests,andinspectionscontainedinSpecificationA490shouldbecarefullyconsidered.1.3NutsarecoveredinSpecificationA563.Unlessotherwisespecified,thegradeandstyleofnutforeachgradeoffastenershallbeasfollows:GradeofFastenerandSurfaceFinish
NutGradeandStyleA
BC,plain(orwithacoatingofinsufficientthick-nesstorequireover-tappednuts)
C,heavyhex
BC,zinc-coated(orwithacoatingthicknessre-quiringover-tappednuts)
DH,heavyhex
BD,allfinishes
DH,heavyhex