304 is a common material in stainless steel, which is 7.93g/cm3, also known as 18/8 stainless steel. With high temperature resistance of 800 degrees, it has good processing performance and high toughness. It is widely used in industrial and furniture decoration industry and food industry.

The common marking methods on the market are 06Cr19Ni10 and SUS304, of which 06Cr19Ni10 generally represents the national standard production, 304 generally represents the ASTM standard production, and SUS304 represents the Nissan label production. 304 is versatile and is widely used to make equipment and parts that require good overall performance (corrosion resistance and formability). In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a grade of stainless steel produced in accordance with US standards.

It is characterized by good toughness and corrosion resistance. Austenitic stainless steel 304, 316 itself has no magnetism, and is generally demagnetized after processing, but it may not be completely eliminated, and there will be relatively small magnetic existence, that is, micromagnetic. Magnetics does not mean that it is not a stainless steel ball. For example, martensitic stainless steel balls 420 and 440 can be sucked by magnets, commonly known as stainless steel.