4140 scm440 42CrMo4 cold drawn hexagonal steel bar 4140 scm440 42CrMo4 cold drawn hexagonal steel bar or hex steel bar are produced by cold drawing from hot rolled steel round bar through hexagonal mould. In general, before cold drawing, 4140 scm440 and scm 440 steel round bar will be annealed so that the steel bar is soft enough to protect both the mould and steel surface. Except cold drawn hexagonal steel bar, we can also supply 4140 scm440 42CrMo4 cold drawn and Q&T hexagonal steel bar to reach high strength for high strength usage. 4140 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 Increased strength No brittle, UT testing/Precision size tolerance/Good straightness Good Roughness/Professional technical service/Competitive price/Fast delivery…
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