3 16 stainless steel is food grade and can be used for water supply equipment. 304 stainless steel is equivalent to 3 16 stainless steel in strength and yield. The wear resistance of 3 16 stainless steel is better than that of 304 stainless steel because its hardness is slightly higher than that of 304 stainless steel. They are all austenitic stainless steel. The corrosion resistance and high temperature resistance of 3 16 stainless steel have been greatly improved by adding Mo element, and the high temperature resistance can reach 1200 to 1300 degrees, which can be used under harsh and cool conditions.