管道压力等级编号规则

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1、管线压力等级及材料等级代号管道压力等级编码规则一、采用四位编码组合成管道压力等级，四位编码由字母和数字组成。PIPINGPRESSURERATINGISCOMPOSEDOFFOURCODING,WHICHINCLUDESTHREELETTERSANDONEDIGIT.第一位表示：压力等级，用字母A、B、C……等表示。1stCHARACTER:PRESSURERATING,USINGA,B,C,…ANDSOON第二位表示：主体材料，用数字1、2、3、4……表示。2ndCHARACTER:MATERIALTYPE,USING0,1,2…ANDSOON第三位表示：材料的等

2、级，用字母A、B、C……等表示。3rdCHARACTER:DETAILMATERIAL,USINGA,B,C…ANDSOON第四位表示：特殊要求，用字母A、B、C……等表示。4thCHARACTER:SPECIALREQUIREMENTS,USINGA,B,C…ANDSOON二、PRESSURERATINGCODE/压力等级编码表GGGGSPECIALREQUIREMENTS/特殊要求DETAILMATERIAL/材料等级MATERIALTYPE/主体材料PRESSURERATING/压力级别1.PRESSURERATING/压力等级A150LbB300LbC400

3、LbD600Lb4E900LbF1500LbG2500LbHAPI2000psiIAPI3000psiJAPI5000psiKAPI10000psiM125LbP75LbONORMALATMOSPHERE/常压2.MATERAILTYPE/主体材料0—NONMETAL/非金属1—ALLOYSTEEL/合金钢2—CARBONSTEEL/碳钢3—CRYOGENICCARBONSTEEL/低温碳钢4—STAINLESSSTEEL/不锈钢5—DUPLEXSTAINLESSSTEEL/双相不锈钢6—COPPER-NICKLEALLOY/铜镍合金7—COPPER/铜8—STAN

4、DBY/备用43.DETAILMATERIAL/材料等级NONMETALAABSDPBGGRE(IMO753L3)BPE(HDPE)ESRPE(HDPE)HGRE(UK00A)CCPVCFGREISTANDBYALLOYSTEELA35CrMoBSTANDBYCARBONSTEELAA106GrB/20＃API5LGrBA53GrB1.5mmCORROSIONALLOWANCEEAPI5LGrX42IAPI5LGrX75BA106GrB/20＃API5LGrBA53GrB3mmCORROSIONALLOWANCEFAPI5LGrX52JSTANDBYCA106GrB

5、/20＃API5LGrBA53GrB4.5mmCORROSIONALLOWANCGAPI5LGrX65DA106GrB/20＃API5LGrBA53GrB6mmCORROSIONALLOWANCHAPI5LGrX70CRYOGENICCARBONSTEELAA333Gr3CA333Gr6FSTANDBYBA333Gr4E16MnSTAINLESSSTEELA316L/OOCr17Ni14Mo2D304/00Cr18NiGSTANDBYB316/0Cr17Ni12Mo2E321/0Cr18Ni11TiC304L/OOCr19NiF317/0Cr19Ni13Mo3DUP

6、LEXSTAINLESSSTEELAS31803BS32750CSTANDBYCOPPER-NICKLEALLOY4A90-10CuNiC70-30CuNiESTANDBYB80-20CuNiDSTANDBYCOPPERAALUMINUMBRONZECSILICONBRONZEESTANDBYBREDBRASSDSTANDBYNOTE:1GRE(IMO753L3)ISAPPLIEDTOWET-PIPEINFIRESYSTEM.2GRE(UK00A)ISAPPLIEDTODRY-TYPEFIRESYSTEM.4.SPECIALREQUIREMENT/特殊要求H—TEM

7、PERATURE≥180℃/用于温度≥180℃以上G—CARBONSTEELGALVANIZEDORHOT-DIPGALVANIZED/碳钢镀锌或热浸锌P—CARBONSTEELRESIN-COATED/碳钢涂塑E—CARBONSTEELEPOXY-COATED/碳钢涂环氧N—ACCORDANCETONACE/满足NACE要求L—CRYOGENIC/低温R—CARBONSTEELCAOTINGRUBBER/碳钢衬橡胶Z—NOSPECIALREQUIREMENT/无特殊要求EXAMPLE:A2AG:A---150Lb2---CARBONSTEELA---A1061