Alloy pipe, all kinds of specification is available.We can meet your every requirement. Good quality! 1) Specification:a) O.D.: 10- 630mmb) Wall ... ,Cr5Mo,Cr9Mo,A335P91,A335T91,P22,P11,P12,P5,SA106B,106C,J55,K55 3) Standard: GB/T17396-1998(ASTM/BS/JIS/NF ... #,45#,16Mn,27SiMn,12Cr1MoV,15CrMo,10CrMo910,Cr5Mo,WB36 Alloy seamless Pipe