The major character of our Grinding Balls is that: High hardness, low breakage, good wear-resistance, lower price. It is mainly used in cement plants, mines, power stations etc. The hardness and chemical composition of our grinding balls as follows:
1. Forged steel ballsSize: 25mm-180mmHardness: HRC55-65Chemical elements: C: 0.52-0.65; Si: 0.15-0.37; Mn: 0.6-1.2; S & P: 0.04Max; Cr: 0.25Max.
2. Forged steel balls (RCAB-1)Size: 25mm-180mmHardness: HRC58-65Chemical elements: C: 0.7-0.9, Si: 0.65-1.00, Mn: 0.70-1.25, P/S: 0.04Max, V: 0.05-0.12
3. High chrome cast ballsSize: 17mm-150mmHardness: HRC58-65; Chrome content: 11-27%
4. Low chrome cast ballsSize: 17mm-150mmHardness: HRC45-55; Chrome content: 1-3.5%
5. Medium chrome cast grinding balls
Size: 17mm-150mmHardness: HRC50-60; Chrome content: 5-8%