Soft carbon steel balls are manufactured without heat treatment and provide good ductility, machinability and cost efficiency for general industrial and hardware applications.

Through-hardened carbon steel balls are manufactured from high carbon steel and heat treated to achieve high hardness and wear resistance throughout the entire cross-section. They are widely used in industrial applications requiring higher load capacity and improved durability compared with low carbon steel balls.

Case-hardened carbon steel balls are manufactured from low carbon steel and heat treated to obtain a hardened outer layer with a tough inner core. They are widely used in industrial applications requiring economical wear resistance and good impact performance.