1,Ferritic stainless steel:

With high Cr proportion, good corrosion resistance and high temperature oxidation resistance.
2, Austenitic stainless steel:

Typical grades, such as / Cr18Ni9, / Cr18Ni9T1 non-magnetic, they enjoy good corrosion resistance, high temperature strength and oxidation resistance, good plasticity and ductility, good impact toughness, so it is  widely used. The general strength of this steel is not high and the yield strength is low, the strength can not be improved by heat treatment, tensile strength and flexibility can be strengthened with cold pressing process. But they should not be used  under high loads.

3, Martensite stainless steel:

Typically, such as 2Cr13, GX-8, magnetic, it enjoys good thermal conductivity, high strength and yield strength, good mechanical properties. With high carbon content, returnning dealing is required for stress relieving after welding, high temperature cooling is easy to form 8's body, it will slowly getting cooling after forging and tempering should be carried out immediately. Mainly used in bearing parts.

Related product: Stainless flat steel