Austenitic stainless steel
Austenitic stainless steel refers to stainless steel having an austenite structure at normal temperature. When the steel contains about 18% Cr, Ni 8% to 25%, and C about 0.1%, it has a stable austenite structure. Austenitic chromium-nickel stainless steel includes the famous 18Cr-8Ni steel and high Cr-Ni series steel which is added with elements of Cr, Ni, Mo, Cu, Si, Nb and Ti. Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but its strength is low. It is impossible to strengthen it by phase transformation. It can only be strengthened by cold working. If it is added with elements such as S, Ca, Se, Te, it has good machinability.