... -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 ... CE,APITechniqueHot rolled,cold rolledSurfacePolished,black,bright.ApplicationElectrical Resistance,Bolier Pipe, Heat Exchanger Tubes,Petroleum and Oil,Chemical Industry, Energy sources, ...