Material:Carbon Steel: ASTM A105, ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH P250GH, P280GHM 16MN, 20MN ,20# ,A36, A266 CL2/CL4,ST37.2, C22.8,S235JR,S275JR,S355JR ,A694(F52 F56 F60 F65 F70 F80)etc.Stainless steel:ASTM/ASMES/A182F304 | F304L |F304H | F316 | F316L | F321 | F321H | F347|31Ti 3......