Stainless steels are special types of steel that are resistant to rust due to their high chromium content. Martensitic stainless steels constitute a subgroup of stainless steels and have a martensitic structure. Martensite is a type of crystal structure in steels and has properties of hardness and magnetism. Martensitic stainless steels are commonly used in cutting tools and knife making due to their high hardness and magnetizability.
Some examples could include: