Martensitic stainless steels represent the smallest family of stainless steels available on the market.
Martensitic steel represents the smallest range of stainless steel on the market. Martensitic stainless steel has very high mechanical characteristics and is easily workable on machinery. It is the only stainless steel which can undergo tempering, a thermal treatment to increase its mechanical properties (tensile strength, yield strength, hardness).
This steel range has a higher quantity of Carbon compared to other ranges, to maintain greater hardness. In some cases, to guarantee greater surface hardness, Nitrogen is added.
Generally, this steel range is less workable, which is partly mitigated by the addition of a small percentage of Nickel (2/3%).