1. s355j2h alloy seamless steel pipe 2.grade: P5, P9, P11, P12, P22, P91, P92 3.OD: 6-1200mm, WT: 1-150mm Product Description s355j2h alloy seamless steel pipeP22 alloy steel pipea335 ... :flattening,flaring,grain size,MarkingMore information according the standard:A213 : Seamless Ferritic and Austenitic Alloy-Steel Boiler,Superheater and Heat-Exchanger Tubes s355j2h alloy seamless steel pipe