42CrMoS4 quenched & tempered qt steel round bar

42CrMoS4 quenched & tempered steel bar 42CrMoS4 is a kind of free cutting steel similar to 42CrMo4 but with limited sulphur content 0.020%-0.035% which make it easy cutting and machining. 42CrMoS4 alloy steel round bar is usually in cold drawn, peeled, ground and polished and heat treaded condition. For example, many customers prefers to use 42CrMoS4 qt steel bar, 42CrMoS4 cold drawn steel bar and 42CrMoS4 turned, ground and polished steel bar. 42CrMoS4 material quenched and tempered q&t steel bar we supply includes following advangtages: Consistent mechanical properties Deep mechanical properties (from surface to the center according to your requirement) Even hardness on the whole bars/Tougher and Increased strength No brittle, UT testing/Precision size tolerance/Good straightness Good Roughness/Professional technical service/Competitive price/Fast delivery  Aisi 4140,Aisi 4130,Round Bar S45C,Astm A193 B7…