Boiler steel pipe 1.OD:21-711MM 2.WT:1-60MM 3.Length:5-12M BV&SGS Boiler steel pipe 1.OD:21-711MM2.WT:1-60MM3.Length:5-12MBV&SGS Description15CrMo,34CrMo4,Cr5Mo Alloy steel pipe StandardASTM A213,A200,A335,DIN17175,JIS G3458 G3462, GB5310,GB6479,GB9948MaterialP1,P2,P5,P9, P11,P12,P22,P91,T1,T2,T12,T11,T22,T9.12CrMo,15CrMo,20CrMo,42CrMo,12Cr1Mov,10CrMo910,35CrMo4,13CrMo4,10CrMo910,Cr5Mo,Cr9Mo, ...