304 stainless steel is one kind of universal stainless steel materials, corrosion prevention of 200 series stainless steel material than people. High temperature resistant aspects are relatively good, can high to to 1000-1200 degrees. 304 stainless steel with excellent stainless corrosion resistant performance and good resistance to inter crystal corrosion performance. To oxidizing acid, in experiments that the concentration of 65% or below boiling temperatures of nitric acid, 304 stainless steel have very strong corrosion resistance. The alkali solution and most organic and inorganic acid also has good corrosion resistance ability.