... , 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8, etc. (2)CS: ASTM ASTM A105, A105N, 20#, Q235, 16Mn, ASTM A350 LF1 ... to special requirement. pipe & fittings:steel pipes, elbow, tee, cross, reducer, flange, cap, lap joint stub end, steel pipes, socket fittings ...