Austenitic Stainless Steel is the most common types of stainless steel that has austenite and is the alloys containing chromium and nickel, and sometimes molybdenum and nitrogen.
Reference Definition by Asminternational.org: Austenitic Stainless Steel is the most common and familiar types of stainless steel. They are most easily recognized as nonmagnetic. They are extremely formable and weldable, and they can be successfully used from cryogenic temperatures to the red-hot temperatures of furnaces and jet engines. They contain between about 16 and 25% chromium, and they can also contain nitrogen in solution, both of which contribute to their high corrosion resistance. Were it not for the cost of the nickel that helps stabilize their austenitic structure, these alloys would be used even more widely.
Related Definitions in the Project: The Metallurgy (Corrosion and Cracking)