304 stainless steel is the most common steel type, which can withstand the high temperature of 800℃, has excellent corrosion resistance and intergranular corrosion resistance, good machinability, high toughness and weak magnetism. But compared with 3 16 stainless steel, due to the addition of molybdenum, it has better corrosion resistance and high temperature resistance, and the high temperature resistance can reach 1200-65438+. It is superior to 304 in acid and alkali resistance and high temperature resistance. Mainly used in food industry, surgery, surgical instruments and other medical grade, 3 16 stainless steel basically does not expand when heated and contract when cooled.