Pursuit of Heartbeat From Details. 304 Stainless Steel Strip Sheet Polished Surface: 2B (Matt) Surface BA (Bright) Surface. Food production equipment, mold gaskets, chemical equipment, nuclear energy, electronic components, scientific experiments, etc. C:? 0.07%, Si:? 1.0%, Mn:? 2.0%, Cr:17.019.0%, Ni:8.011.0. 304 is a kind of general-purpose stainless steel, which is widely used to make equipment and machine parts requiring good comprehensive performance (corrosion resistance and formability). 304 stainless steel is a stainless steel grade produced according to the ASTM standard in the U. 304 is equivalent to 0Cr19Ni9 (0Cr18Ni9) stainless steel in China.