1. 304 stainless steel. It is one of the most widely used austenitic stainless steels. It is suitable for the manufacture of deep-drawing forming parts and acid pipes, containers, structural parts, various instrument bodies, etc., and can also manufacture non-magnetic, low-temperature equipment and part.

2. 304L stainless steel. In order to solve the problem of the severe intergranular corrosion tendency of 304 stainless steel due to the precipitation of Cr23C6, the ultra-low carbon austenitic stainless steel developed by the sensitized state has significantly better intergranular corrosion resistance than 304 stainless steel. Except for the slightly lower strength, other properties are the same as 321 stainless steel. It is mainly used for corrosion-resistant equipment and components that cannot be solid-solution treated after welding, and can be used to manufacture various instrument bodies.