304 stainless steel is a versatile stainless steel material, anti-rust performance stronger than the 200 series stainless steel. High temperature also relatively good, the general temperature limit is less than 650 °C. 304 stainless steel with excellent corrosion resistance and good resistance to intergranular corrosion. On the oxidizing acid, in the experiment: the concentration of ≤ 65% of the boiling temperature of nitric acid, 304 stainless steel is highly resistant to corrosion. Alkali solution and organic acids and inorganic acids also have good corrosion resistance.