1. Forging steel grinding balls
(1)Size: Dia 20mm-150mm
(2)Hardness: HRC 55-65
(3)Chemical composition: C: 0.48-0.52 Si: 0.17-0.37 Mn: 0.6-1.2 S&P≤ 0.035
2. Chrome casting iron balls.
(1) High chrome cast balls
Size: 20mm-120mm; Hardness: HRC58-65; Chrome content: 11-28%
(2) Middle Chrome Casting balls
Size: 20mm-120mm; Hardness>HRC50; Chrome content: 7-10%
(3) Low chrome cast balls
Size: 20mm-120mm; Hardness: HRC45-55; Chrome content: 1.5-3.0%.
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