【英文标准名称】:StandardSpecificationforHigh-StrengthLow-AlloyStructuralSteel
【原文标准名称】:高强度低合金结构钢标准规范
【标准号】:ASTMA242/A242M-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:A01.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:atmosphericcorrosionresistance;bars;boltedconstruction;durability;high-strength;low-alloy;plates;rivetedconstruction;shapes;steel;structuralsteel;weight;weldedconstruction,Basic-oxygensteel;Corrosion-resistantsteel--specifications;
【摘要】:1.1Thisspecificationcovershigh-strengthlow-alloystructuralsteelshapes,plates,andbarsforwelded,riveted,orboltedconstructionintendedprimarilyforuseasstructuralmemberswheresavingsinweight[mass]oraddeddurabilityareimportant.Theatmosphericcorrosionresistanceofthesteelinmostenvironmentsissubstantiallybetterthanthatofcarbonstructuralsteelswithorwithoutcopperaddition.Whenproperlyexposedtotheatmosphere,thissteelcanbeusedbare(unpainted)formanyapplications(seeNote1).Thisspecificationislimitedtomaterialupto4in.[100mm],inclusive,inthickness.Note18212;Formethodsofestimatingtheatmosphericcorrosionresistanceoflow-alloysteels,seeGuideG101.1.2Whenthesteelistobewelded,itispresupposedthataweldingproceduresuitableforthegradeofsteelandintendeduseorservicewillbeutilized.SeeAppendixX3ofSpecificationA6/A6Mforinformationonweldability.1.3Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.1.4Forstructuralproductsproducedfromcoilandfurnishedwithoutheattreatmentorwithstressrelievingonly,theadditionalrequirements,includingadditionaltestingrequirementsandthereportingofadditionaltestresults,ofSpecificationA6/A6Mapply.^REFERENCE:ASTMStandards:A6/A6MSpecificationforGeneralRequirementsforRolledStructuralSteelBars,Plates,Shapes,andSheetPilingG101GuideforEstimatingtheAtmosphericCorrosionResistanceofLow-AlloySteels^KEYWORDS:atmosphericcorrosionresistance;bars;boltedconstruction;durability;high-strength;low-alloy;plates;rivetedconstruction;shapes;steel;structuralsteel;weight;weldedconstruction^DOI:10.1520/A0242_A0242M-04R09^INDEXTERMS:Basic-oxygensteel;Corrosion-resistantsteel--specifications;Corrosiveserviceapplications--bars/rods/shapes;Durability;HSLA(high-strengthlow-alloy)steel--specifications;Rivetedconstruction--specifications;Steelbars--specifications;Structuralsteel(SS)bars--specifications;Structuralsteel(SS)plate--specifications;Structuralsteel(SS)shapes--specifications;Weightsavingsteel;Weldedsteelbars/shapes--specifications;Weldedsteelplate/sheet/strip--specifications^STATUS:DnCnSnNnMn^APPROVAL:20090401^PAGES:3^COMMITTEE:A01^SUBCOMMITTEE:0200^BOS:01.04^ORGINFO:DOD^ACTION:REAPPROVESTD^MISCPUB:40.98^PDESIG:A0242^PYEAR:2004R2009^CLASS:Specification
【中国标准分类号】:H40
【国际标准分类号】:77_140_10
【页数】:3P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 滚动轴承锁紧螺母(宽系列)及带弯内爪的锁紧垫圈 |
| 中标分类： |
机械 >>
通用零部件 >>
滚动轴承 |
| 替代情况： | 调整为JB/T 7916-1995 |
| 发布日期： | |
| 实施日期： | 1985-05-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 7页 |
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所属分类： 机械 通用零部件 滚动轴承