Stainless steel bars are made of stainless steel ingots through hot rolling or forging processes. They have high strength, corrosion resistance and good processing performance. During the manufacturing process, the ingots are first heated, forged or hot rolled, and gradually formed into bars. Hot-rolled stainless steel bars usually have a rough surface and large dimensional tolerances, which are suitable for some applications where precision is not required. Cold-drawn stainless steel bars are cold-worked and have higher precision and surface finish, which are suitable for precision machining or assembly. Stainless steel bars can be subjected to different surface treatments according to the requirements of use, such as pickling, polishing, wire drawing, sandblasting, etc., to improve their surface quality and corrosion resistance. According to the different material components, common stainless steel bars include 304, 316, 410, 420 and other models. Among them, 304 and 316 stainless steel bars are widely used in chemical, food processing, medical and other industries due to their excellent corrosion resistance. In addition to round bars, they can also be processed into square bars, hexagonal bars, elliptical bars and other shapes according to requirements to meet different structural design and assembly requirements.