... ,11SMnPb30,SUM24,SUM42,SCM440,4140,40Cr 2. size:0.5mm-32mm We are a manufacture specialised in making cold drawn steel bars including ... , square steel bars, flat steel bars, turret / hexagon steel bars, cold drawn wire rod. And the steel grade contains: 12L14,SAE 1006 ... satisfy your demand if you need other grades or sizes. 4140 Y15Pb Cold drawn steel wire