Density of 304 Stainless Steel: 7.93 g/cm³. Austenitic stainless steels generally use this value. Chromium content of 304 (%): 18-20. 304 is equivalent to China's 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 Stainless Steel is a general-purpose stainless steel material with superior rust-proof properties compared to 200 series stainless steels. It also has excellent heat resistance, up to 1000-1200 degrees. 304 Stainless Steel boasts excellent rust and corrosion resistance, as well as good intergranular corrosion resistance. In experiments with oxidizing acids, it was found that 304 Stainless Steel has strong corrosion resistance in nitric acid with a concentration ≤65% below boiling point. It also exhibits good corrosion resistance to alkaline solutions and most organic and inorganic acids.