Detailed Product Description CommodityAlloy Steel PipeMaterial ASTM: T2,T5, T9, T11, T22, P2,P12,P5, ... 20,STPA22,STPA 23, STPA 24, STPA 25,STPA 26 DIN: 13CrMo44,10CrMo910,10CrMo195,X12CrMo91 GB: 12CrMo,15CrMo,12Cr2Mo,1Cr5Mo StandardASTM ... A213,ASTM A335,JIS G3462,JISG 3458,DIN 17175,GB 5310,GB 6479, and equlivant standardsOD.10mm-1220mmWT ...