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1、ICS77.140.75H48NationalStandardofthePeople’sRepublicofChinaGB/T14976-2012SubstitutionofGB/T14976-2002SeamlessStainlessSteelPipesforFluidTransportIssuedonMay11th,2012ExecutedonFeb.1st,2013-9-23IssuedbyGeneralAdministrationofQualitySupervision,InspectionandQ
2、uarantineofthePeople’sRepublicofChinaandStandardizationAdministrationofthePeople’sRepublicofChinaGB/T14976-2012ForewordThisstandardisdraftupinaccordancewithrulesofGB/T1.1-2009.ThisstandardisformulatedbyreferencetoASTMA269/A269M-04SeamlessandWeldedStainless
3、AusteniteSteelPipeforGeneralPurpose,ASTMA312/A312M-05aSeamless,WeldedandDeepColdProcessingAusteniteStainlessSteelPipeandASTMA268/A268M-05aSeamlessandWeldedFerriteandMartensiteStainlessSteelPipeforGeneralPurpose.ThisstandardsubstitutesGB/T14976-2002Seamless
4、StainlessSteelPipesforFluidTransport.ComparingwithGB/T14976-2002,thisstandardisrevisedasfollows:-Addeddeliverymethodbasedonminimumwallthickness;-Modifiedallowabledimensionaldeviationofpipes;-Deletedsignsexample;-Gradeandchemicalcompositionofsteelischangedi
5、nlinewithGB/T20878;-Steelgradeofand12Cr13areadded;-Deletedbipolarsteelgradeandrelativecontent;-Modifiedrequirementsonhydraulictestofpipes;-AddedinformativeAppendixAComparisonTableofGradeThisstandardisproposedbyChinaIronAssociation.Thisstandardiscentralized
6、byChinaSteelStandardizationTechnicalCommittee(SAC/TC183).Draftingunitofthisstandard:JiangsuWujinStainlessSteelPipeGroupCo.,Ltd.PanggangGroupChengduIron&SteelCo.,Ltd.,ShanxiTaigangStainlessSteelPipeCo.,Ltd.,ShanghaiShangshangStainlessSteelPipeCo.,Ltd.,Yongx
7、ingSpecialStainlessSteelCo.,Ltd.andChinaMetallurgicalInformationStandardizationInstitute.Majordrafterofthisstandardis:SongJianxin,ZhouZhibin,YanRu,LiQi,JiXuewen,YangHui,WangJianyong,ChenZeminandDongli.Successiveversionsofthestandardsubstitutedbythisstandar
8、dareasfollows:-GB/T14976-1994;-GB/T14976-2002.GB/T14976-2012SeamlessStainlessSteelPipesforFluidTransport1.ScopeThisstandardspecifiescategory,symbol,ordercontent,dimension,shape,weight,technicalrequirements,te
