Alloy pipe, all kinds of specification is available.We can meet your every requirement. Good quality! 1) Specification:a) O.D.: 10- 630mmb) Wall thickness: 1 - 60mm2)Material:20#,45#,16Mn,20G,27SiMn,12CrMoVG,15CrMoG,10CrMo910,WB36,35CrMo,42CrMo,Cr5Mo,Cr9Mo,A335P91,A335T91,P22,P11,P12,P5,SA106B,106C,J55,K55 3) Standard: GB/T17396-1998(ASTM/BS/JIS/NF/DIN)3) Standard: GB/T17396-1998(ASTM/BS/JIS/NF/ ...