Alloy pipe, all kinds of specification is available.We can meet your ... - 630mmb) Wall thickness: 1 - 60mm2)Material:20#,45#,16Mn,20G,27SiMn,12CrMoVG,15CrMoG,10CrMo910,WB36,35CrMo,42CrMo,Cr5Mo,Cr9Mo,A335P91,A335T91 ... -1999,GB5310-1995, GB6479-2000,GB9948-1988Material: 20#,45#,16Mn,27SiMn,12Cr1MoV,15CrMo,10CrMo910,Cr5Mo,WB36 Alloy seamless Pipe