Chrome Steel

Grade 25 Chrome steel bearing balls are widely used in precision ball bearings as well as most aerospace, transportation and industrial applications. Chromium (Cr) has a tendency to increase hardness, toughness and wear resistance of steel. Chrome steel is a chrome alloy carbon steel, not a chrome plated steel. Chrome steel balls have excellent surface quality, high hardness and high load bearing capacity as a result of through hardening (Rockwell C 60-67).Chrome steel is approximately 96% iron and capable of being attracted by a magnet

440c Stainless Steel

Grade 25 AISI type 440-C stainless steel balls afford the advantage of maximum hardness (58-65 Rockwell C ) combined with corrosion-resisting properties making them especially useful for bearing applications in severe environmental condition. 440-C stainless steel is a high carbon martensitic stainless steel with moderate corrosion resistance and high strength and the ability to keep excellent hardness in heavy service.