440C steel is high-quality martensitic stainless steel. The carbon content is 1.0%, and the chromium content is 16-18%. It has strong rust resistance and wears resistance.
440C steel is good for kitchen knife material. 440C has the highest strength and hardness in 440 series stainless steel, easy to maintain. It is usually heat treated to reach hardness of 58–60 HRC. The 440c knife steel has good edge retention and holds its edge for a long time.