Martensitic stainless steel

Martensitic stainless steel is a kind of stainless steel whose mechanical properties are adjusted by heat treatment. It is a kind of stainless steel that can be hardened.

After quenching, the hardness is higher, and different tempering temperatures have different strength and toughness. It is mainly used for steam turbine blades and surgical instruments

According to chemical composition, it can be divided into martensitic chromium steel and martensitic nickel steel Pattern structure and strengthening treatment can be divided into martensitic stainless steel, martensitic and semi austenitic (or semi martensitic) precipitation hardening stainless steel and martensitic stainless steel

Martensitic stainless steel grades include 403,410,415,420,431,440 etc