We are Jinan Jinchi Construction Materials Co.,Ltd, an important professional manufacturer of grinding balls in China.
1. Forged steel grinding balls
Size: 20mm-150mm
Hardness:HRC55-65
Chemical elements: C: 0.52-0.65; Si: 0.2-0.4; Mn: 0.7-1.2; S & P: 0.04Max; Cr: 0.25Max.
2. RCAB-II New Materials Forged Steel Balls
Size: 40mm-150mm
Hardness:HRC58-65
Chemical elements: C: 0.72-0.82; Si: 0.17-0.37; Mn: 0.7-0.8; S & P: 0.04Max;
Cr: 0.40-0.60.
