ASTM 304 Stainless steel round bar .we professionally machining and prroduce forged heavy ... ,weight of single piece between 50kg and 5t3,plane vertical height(the distance from upper surface to lower surface) ... of "Classification Society".5,we usualy use material of steel type of 15#,20#,25#,30#.35#,40#,45#,46 ... requirements we can render excellent heat treatment. ASTM 304 Stainless steel round bar