【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
【英文标准名称】:Waterheatersandwaterheatinginstallationsfordrinkingwaterandservicewater;corrosionprotectiononthewatersidebymeansofthermoplasticcoatingmaterials;requirementsandtesting
【原文标准名称】:饮用水和工业用水加热器和水加热装置.用热塑性塑料涂层材料作与水接触面的防腐保护.要求和检验
【标准号】:DIN4753-9-1990
【标准状态】:作废
【国别】:德国
【发布日期】:1990-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:钢;容器;定义;特性;热塑性聚合物;材料;防腐蚀;监督(认可);试验;覆层;作标记;塑料;规范(批准);检验;设计;缺陷与故障;水加热设备;饮用水;防护覆层;稳定性(机械性能);水加热器
【英文主题词】:
【摘要】:
【中国标准分类号】:P42;Q83
【国际标准分类号】:91_140_65
【页数】:5P;A4
【正文语种】:德语