There are four main types of stainless steel materials:

One, ferritic stainless steel. It has good corrosion resistance, oxidation resistance and stress resistance, and is mainly used for the production of corrosion-resistant parts;

Second, austenitic stainless steel, with good toughness and plasticity, is mainly used in various industries;

Three, Austenitic-ferritic duplex stainless steel, with good high toughness and moldability, is mainly used for corrosion-resistant engineering materials;

Fourth, martensitic stainless steel, which can change the mechanical properties after heat treatment, is mainly used for the production and processing of surgical instruments, steam turbine blades and other products.