低温阀门用LCB和LCC钢热处理方法浅析

:100225855(2004)0220018202:(1972-),,,LCBLCC1,2(11(),200002;21,200082),LCBLCCASTMLCB;LCC;;:TG156:AAnalysisofheattreatmentmethodoflowtemperaturesteelLCB&LCCYANGYu2tuan1,ZHUANGCheng2lin2(11ShanghaiElectric(Group)Corp.,Shanghai,200002,China;21ShanghaiLianggongValveManufactory,Shanghai,200082,China)Abstract:ThepaperproposesaheattreatmentprocessforLCB&LCCsteelbasedontheoreticanaly2sisandalotoftest.ThetwolowtemperaturesteelsareinASTMstandardsandsuitableforlow2tem2peratureservice.TheprocessissosuccessfulthatthemechanicalperformanceofthetwosteelscanmeetthedemandofASTMstandard,especiallythelowtemperatureimpacttoughness,aftertheheattreatment.Keywords:LCB;LCC;Lowtemperaturesteel;Heattreatmentprocess1LCBLCC,ASTMA352/A352M,-460,C2Mn,LCBLCCASTM,2,LCBLCCWCBWCCC2Mn(1),ASTM4(2),WCBWCC,LCBLCC-4618J20J,LCBLCCWCBWCC,,LCBLCCMnNiCr1LCBLCCWCBWCC%CSiMnPSNiCrMoCuVLCB01300160110001040104501500150012001300103WCB01300160110001040104501500150012001300103LCC01250160112001040104501500150012001300103WCC0125016011200104010450150015001200130010381200422LCBLCCWCBWCCb/MPas/MPa5/%/%k(-46)/kJ(m2)-1LCB450620240243518WCB4856552502235LCC485655275223520WCC4856552752235MnNiCrMn,,,Ni,,,,,Cr,(,),,MnNiCr,LCBLCCMnNiCr,,,,,LCBLCC,LCBLCCMnNiCr,,,,,,,,,,,LCBLCC,,,,LCBLCCMnCr,500550,,,,,,500550,,,,3,LCBLCC,(1),,LCBLCC,ASTM,k40J1LCBLCC4LCBLCC,,LCBLCC,,1.M.:,1992.2.M.:,1989.3ASTMA352/A352M,S.(:2003111128)9120042