Austenitic stainless steel: The microstructure of austenitic stainless steel is face-centered cubic crystal, which is non-magnetic and cannot be strengthened by heat treatment, and its strength can only be improved by cold working strengthening.

Austenitic stainless steel has corrosion resistance, good plasticity and toughness at room temperature and low temperature, easy to form, good weldability, and is the most widely used in industry. Its output accounts for about 70% of stainless steel production. Its products include plates, bars, steel pipes, steel strips, steel wires and forgings.

According to the matrix type of austenite, austenitic stainless steel can be divided into two series of chromium-nickel austenitic stainless steel. There are many grades of austenitic stainless steel, but the ones that are mass produced and used are 0Cr18Ni9, 00Cr18Ni10, 0Cr17Ni12Mo2, 00Cr17Ni14Mo2 and corresponding improved grades. The output accounts for about 50% of the entire stainless steel output.