annealed aisi 4140 cold drawn steel round bar

Annealed AISI 4140 Cold Drawn Steel Round Bar High-machinability annealed AISI 4140 cold drawn round bar is produced with high-purity steel raw materials supplied by leading domestic special steel manufacturers including CITIC Pacific Special Steel, Xingcheng Special Steel, Fushun Special Steel and HBIS Shijiazhuang Steel Plant. Reliable billet source eliminates unstable metallurgical structure defects; our cold drawing workshop further optimizes surface finish, making it the ideal raw material for CNC machining factories across Latin America and Africa to produce gears and spindle shafts. We process all bars at our Laiwu Shandong factory and support customized cutting for global machinery manufacturers exporting from Qingdao Port. SCM440 42CrMo4 4140 1.7225 cold drawn steel bar we supply includes following advantages: Consistent mechanical properties Deep mechanical properties (from surface to the center according to your requirement) Even hardness on the whole bars/Tougher and Increa…