Dongguan VIM Steel Co.,Ltd.

440C is a type of high carbon martensitic stainless steel, commonly supplied in round bar form. After appropriate heat treatment, this material can achieve a relatively high hardness, strength, and toughness compared to other stainless steel grades like 440A and 440B. 440C has a higher carbon content, thus achieving higher hardness and toughness, but its toughness may be lower than that of lower carbon versions. 440C exhibits good machinability in the annealed condition, and it is recommended to use hard alloy or carbide tools for machining to achieve more consistent machining results. This material is widely used in shafts, blades, valve components, precision machinery parts, and in industries requiring high toughness. We can offer quality consistent 440C stainless steel bars and support material certification.