Top China origin forged commercial carbon/alloy steel round or square bars, Dia.150-800mm, in grade S45C/4140/4340/52100/4145H and/or other grades, surface As forged or peeling, heat treatment such as annealing or Q&T available. Other materials also availabe as below: 1. Carbon steel: 1018, 1020, 1022, 1025, 1030, 1035, 1040, 1045, and 1055. ASTM: A-105, A-266, A-350 LF1/LF2, LF6, and A-707 L3 CL.3 and A-688 all classes 2. Chrome steel: (A182) F-1, F-5, F-6, F-6NM, F-9, F-11, F-12, F-22. F91, XM-19 3. Stainless steel: 405, 410, 416, 420, 430, 304H, 304/304ELC, 310, 316H, 316/316ELC, 317ELC, 321, 347, alloy 20CB, 630 (17-4), duplex SS 2205 (F-51), nitro 50 (XM-19), nitro 60, ferralium 255