Forged ball/ rolling ball Chemical elements
| Brand | Materials | C | Mn | Si | Cr | S | P | V |
| JC-1 | 50Mn | 0.48-0.56 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 | |
| JC-2 | 60Mn | 0.57-0.65 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 | |
| JC-3 | 65Mn | 0.62-0.70 | 0.90-1.2 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 | |
| JC-4 | B2 | 0.72-0.85 | 0.70-0.80 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | |
| JC-5 | B3 | 0.58-0.70 | 0.70-1.00 | 1.50-1.90 | 0.70-0.90 | ≤0.035 | ≤0.035 | |
| JC-6 | B6 | 0.80-0.95 | 0.80-1.00 | 0.17-0.37 | 0.80-1.00 | ≤0.035 | ≤0.035 |
Casting balls Chemical elements
| Chemical Components | ||||||||
| Type | Chemical components | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Low-Cr | 1.8-3.3 | ≤1.5 | 0.3-1.5 | 1-3 | ≤1.0 | ≤0.8 | ≤0.10 | ≤0.10 |
| Medium-Cr | 1.8-3.3 | ≤1.2 | 0.3-1.5 | 4-9 | ≤1.5 | ≤0.8 | ≤0.10 | ≤0.10 |
| High-Cr | 1.8-3.3 | ≤1.2 | 0.3-1.5 | 10-18 | ≤1.0 | ≤1.2 | ≤0.10 | ≤0.06 |
| Superhigh-Cr | 1.8-3.3 | ≤1.2 | 0.3-1.5 | 19-30 | ≤2.0 | ≤1.2 | ≤0.10 | ≤0.06 |
| Mechanical Properties and Microstructure | ||||
| Type | Hardness | Falling times | Microstructure | Impact Toughness |
| Low-Cr | ≥45 | ≥8000 | M+C | ≥5 |
| Medium-Cr | ≥50 | ≥12000 | M+C | ≥5 |
| High-Cr | ≥58 | ≥15000 | M+C | ≥5 |
| Superhigh-Cr | ≥60 | ≥22000 | M+C | ≥5 |
| P-Pearlite C-Carbide M-Martensite | ||||






1. Bag(1000-2000KG)
2. Drum(850-950KG)









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