Stainless steel sheet can be made by hot rolling and cold rolling, including the thickness of 0.31-3.0 mm sheet and 3.0-8 mm slab. Hot-rolled stainless steel is not as good as cold-rolled in mechanical properties, but there are good toughness and ductility. Cold-rolled stainless steel plate is low in toughness due to the good hardening. In order to ensure all kinds of stainless steel yield strength, tensile strength, elongation and hardness and other mechanical properties to meet the requirements, prior to delivery must be stainless steel annealing, solution treatment, aging heat treatment.