Balls Steel, Ceramic, Plastic Glass by Boca Bearings ...
Stainless Steel 440C Series Balls contain a martensitictype stainless steel used extensively in bearing applications that require hardness, dimensional stability, corrosion resistance and toughness. Stainless Steel 440C Balls are resistant to corrosion from fresh water, steam, crude oil, gasoline, perspiration, alcohol, blood and food stuffs.