Stainless steel with austenitic structure at room temperature. When the steel contains about 18% Cr, 8%~10% Ni, and about 0.1% C, it has a stable austenite structure. Austenitic chromium nickel stainless steel includes the famous 18Cr-8Ni steel and the high Cr Ni series steel developed by increasing Cr and Ni content and adding elements such as Mo, Cu, Si, Nb, Ti, etc. Austenitic stainless steel is non magnetic and has high toughness and plasticity, but its strength is low and cannot be strengthened through phase transformation. It can only be strengthened through cold working. If elements such as S, Ca, Se, Te are added, it has good machinability. Stainless steel standard parts: This type of steel is not only resistant to oxidation and acid medium corrosion, but also resistant to sulfuric acid, phosphoric acid, formic acid, acetic acid, urea, and other corrosion if it contains elements such as Mo and Cu. If the carbon content in this type of steel is less than 0.03% or if it contains Ti and Ni, it can significantly improve its intergranular corrosion resistance. High silicon austenitic stainless steel with concentrated nitric acid has good corrosion resistance. Due to its comprehensive and excellent comprehensive properties, austenitic stainless steel has been widely used in various industries.