GBT 14976-2012 English Version.doc

GBT 14976-2012 English Version.doc

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1、ICS77.140.75H48NationalStandardofthePeople’sRepublicofChinaGB/T14976-2012SubstitutionofGB/T14976-2002SeamlessStainlessSteelPipesforFluidTransportIssuedonMay11th,2012ExecutedonFeb.1st,2013-9-23IssuedbyGeneralAdministrationofQualitySupervision,Inspectionan

2、dQuarantineofthePeople’sRepublicofChinaandStandardizationAdministrationofthePeople’sRepublicofChinaGB/T14976-2012ForewordThisstandardisdraftupinaccordancewithrulesofGB/T1.1-2009.ThisstandardisformulatedbyreferencetoASTMA269/A269M-04SeamlessandWeldedStain

3、lessAusteniteSteelPipeforGeneralPurpose,ASTMA312/A312M-05aSeamless,WeldedandDeepColdProcessingAusteniteStainlessSteelPipeandASTMA268/A268M-05aSeamlessandWeldedFerriteandMartensiteStainlessSteelPipeforGeneralPurpose.ThisstandardsubstitutesGB/T14976-2002Se

4、amlessStainlessSteelPipesforFluidTransport.ComparingwithGB/T14976-2002,thisstandardisrevisedasfollows:-Addeddeliverymethodbasedonminimumwallthickness;-Modifiedallowabledimensionaldeviationofpipes;-Deletedsignsexample;-Gradeandchemicalcompositionofsteelis

5、changedinlinewithGB/T20878;-Steelgradeofand12Cr13areadded;-Deletedbipolarsteelgradeandrelativecontent;-Modifiedrequirementsonhydraulictestofpipes;-AddedinformativeAppendixAComparisonTableofGradeThisstandardisproposedbyChinaIronAssociation.Thisstandardisc

6、entralizedbyChinaSteelStandardizationTechnicalCommittee(SAC/TC183).Draftingunitofthisstandard:JiangsuWujinStainlessSteelPipeGroupCo.,Ltd.PanggangGroupChengduIron&SteelCo.,Ltd.,ShanxiTaigangStainlessSteelPipeCo.,Ltd.,ShanghaiShangshangStainlessSteelPipeCo

7、.,Ltd.,YongxingSpecialStainlessSteelCo.,Ltd.andChinaMetallurgicalInformationStandardizationInstitute.Majordrafterofthisstandardis:SongJianxin,ZhouZhibin,YanRu,LiQi,JiXuewen,YangHui,WangJianyong,ChenZeminandDongli.Successiveversionsofthestandardsubstitute

8、dbythisstandardareasfollows:-GB/T14976-1994;-GB/T14976-2002.GB/T14976-2012SeamlessStainlessSteelPipesforFluidTransport1.ScopeThisstandardspecifiescategory,symbol,ordercontent,dimension,shape,weight,technicalrequirements,te

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