[www.staffempire.com]-JB 4726-2000 英文版 压力容器用碳素钢和低合金钢锻件.pdfVIP免费

—1—JB4726–2000压力容器用碳素钢和低合金钢锻件CarbonandLow-alloySteelForgingsforPressureVessels本英文版为内部资料，仅供参考，以中文版为准。TheChineseversionofstandardshasprecedencetotheirEnglishtranslationswhichareonlyforinternalreference.—2—PrefaceThisstandardistherevisedversionofJB4726–1994.ThisstandardhasmadefollowingchangesbasedonthecommentsobtainedsincetheimplementationofJB4726–1994,thedomesticdevelopmentofnewsteelgradeandreferenceoftherecentinternationalsimilarstandards:115MnV,currentlynotused,hasbeencanceled;2Moderatetemperatehydrogenresistantsteel14CrlMohasbeenadded;3Phosphorusandsulfurcontentshavebeendecreasedwidelybasedonthedomesticadvancedsmeltinglevelsoastoreachtheinternationaladvancedlevel;40℃impacttestshallbeusedfor16Mn,20MnMo,20MnMoNbforgingsinsteadof20℃impacttest,soastomeettherequirementofpressurevesselproductstandard;5ConsideringthesafetyofpressurevesselsstipulationsinappendixBhavebeenaddedforeachsteelgradeinthisstandard,JB4726–1994shallbenullsincetheimplementationdateofthisstandard.AppendixAandAppendixBofthisstandardarethestandardappendixes.ThisstandardisputforthbyTheNationalPressureVesselsStandardizationandTechnicalCommittee.ThisstandardbelongsbyrighttotheManufacturingSub-committeeoftheNationalPressureVesselStandardizationandTechnicalCommittee.Responsibledraftingunitofthisstandard:HefeiGeneralMachineryResearchInstitute,ChinaGeneralMachineryandEngineeringCompany,WuhanHeavy-dutyCastingandForgingWorks.Maindraftersofthisstandard:ZhangYong,QinXiaozhong,XuJie,TengMingde,YanMingxin,LiRongrong.ThisstandardhasbeenfirstissuedinJanuary1994.标准分享网www.bzfxw.com免费下载www.bzfxw.com—3—中华人民共和国行业标准IndustrialStandardofthePeople’sRepublicofChina压力容器用碳素钢和低合金钢锻件CarbonandLow-alloySteelForgingsforPressureVesselsJB4726–2000InsubstitutionofJB4726–19941.ScopeThisstandardhasspecifiedthetechnicalrequirements,testmethodsandinspectionrules,etc.forcarbonandlow-alloysteelforgingsforpressurevessels.Thisstandardisapplicabletocarbonand...