Tube billet steel:40CrNiMo Alloy Steel Shape:round bar,Billet,Flat bar,wire,tube,pipe,bar,strip,plate,coil. Condition:Anneal This steel is produced according to YB/T5137, Q/320281PA15, ASME standard of America, and its representative grades are 36Mn2V, 37Mn5,42MnMo7, GCr15, 10G, 20G, 15CrMo, 12Cr1MoV and T91, T23, T22 which are produced according to ASME standard.Main application: Main supply to ...