Hot rolling grinding ball
Diameter: 20mm-60mm
Breakage rate: <0.5%
Surface Harness: 60-67HRC
Core hardness:>58HRC
Impact toughness:>12J/CM2
Forged grinding ball
Diameter: 70mm-150mm
Breakage rate: <1%
Surface Harness: 58-64HRC
Core hardness:>55HRC
Impact toughness:>12J/CM2
Grinding ball, forged and rolling ball,rods, cylpebs