Austenitic Stainless Steel: This is the most common type of stainless steel, accounting for about 70% of stainless steel production. It is non-magnetic and has excellent corrosion resistance. Examples include 304 (18-8 stainless steel), 316 (marine-grade stainless steel), and 321.

Ferritic Stainless Steel: Ferritic stainless steel has a higher chromium content and lower carbon content compared to austenitic stainless steel. It is magnetic and offers good corrosion resistance, though not as high as austenitic steel. Examples include 430 and 446.

Martensitic Stainless Steel: Martensitic stainless steel is known for its high strength and hardness. It can be hardened by heat treatment and is used in applications such as cutlery, surgical instruments, and turbine blades. Examples include 410, 420, and 440C.

Duplex Stainless Steel: Duplex stainless steel is a combination of austenitic and ferritic stainless steels, offering a balanced mix of properties. It has good strength and excellent corrosion resistance, particularly in chloride-containing environments. Examples include 2205 and 2507.

Precipitation-Hardening Stainless Steel: Precipitation-hardening stainless steel can be heat treated to achieve high strength levels. It offers good corrosion resistance and is used in aerospace, nuclear, and chemical industries. Examples include 17-4 PH and 15-5 PH.

Duplex Precipitation-Hardening Stainless Steel: This type combines the characteristics of duplex and precipitation-hardening stainless steels. It provides high strength and corrosion resistance, making it suitable for demanding applications. An example is 17-7 PH.

These are just a few examples of the many types of stainless steel available. Each type has its own specific composition, and the choice of stainless steel depends on the intended application and required properties such as corrosion resistance, strength, formability, and cost.