I would like to learn about 304 stainless steel balls.

304 Stainless Steel balls are an austenitic, unhardened stainless steel with excellent resistance to corrosion by oxidizing agents, most organic chemicals, foodstuff, and sterilizing solutions. 304 Stainless Steel has a lower carbon content than 302 Stainless Steel. 304 is slightly magnetic after processing. Such magnet can be demagnetized under high temperature.