Rolled and forged grinding steel ball 20mm to 150mm made of 60Mn 65Mn
Forged Grinding Ball are the idea grinding materials in cement, metallurgy,mining,electrci power and other industries.It applies to various specification of large,medium,small dry and wet grinding machines. Our steel ball has the high hardness,low wear loss, good thoughness and low breakage.Our products have a strong footing in our domestic market of about 20 provinces and export to many countries and regions .Welcome all the friends home and abroad to inquire and cooperate with us.
Specification:
| Material | C | Mn | Si | Cr | S | P |
| 45# | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.25 | ≤0.025 | ≤0.025 |
| 60Mn | 0.57-0.65 | 0.70-1.0 | 0.17-0.37 | ≤0.25 | ≤0.025 | ≤0.025 |
| 65Mn | 0.62-0.70 | 0.90-1.20 | 0.17-0.37 | ≤0.25 | ≤0.035 | ≤0.035 |
| 40Cr | 0.37-0.44 | 0.50-0.80 | 0.17-0.37 | 0.80-1.10 | ≤0.035 | ≤0.035 |
| Ball diameter | Diameter tolerance | Weight of single ball in average | Number of piece of one ton ball in average | Surface hardness | Core hardness | Impact toughness |
| (mm) | (mm) | (g) | (pcs) | (HRC) | (HRC) | (J/cm2) |
| Φ20 | +2,-1 | 32 | 31250 | 60-67 | 57-62 | ≥12 |
| Φ25 | +2,-1 | 64 | 15625 | 60-67 | 57-62 | ≥12 |
| Φ30 | +2,-1 | 110 | 9090 | 60-67 | 57-62 | ≥12 |
| Φ40 | +2,-1 | 263 | 3802 | 60-67 | 57-62 | ≥12 |
| Φ50 | +2,-1 | 513 | 1949 | 60-67 | 57-62 | ≥12 |
| Φ60 | +3,-2 | 888 | 1126 | 58-65 | 50-56 | ≥12 |
| Φ70 | +3,-2 | 1410 | 709 | 58-65 | 50-56 | ≥12 |
| Φ80 | +3,-2 | 2104 | 475 | 58-65 | 50-56 | ≥12 |
| Φ90 | +3,-2 | 2996 | 333 | 58-65 | 50-56 | ≥12 |
| Φ100 | +3,-2 | 4110 | 243 | 58-65 | 50-56 | ≥12 |
| Φ110 | +4,-2 | 5457 | 182 | 55-63 | 48-55 | ≥12 |
| Φ120 | +4,-2 | 7102 | 140 | 55-63 | 48-55 | ≥12 |
| Φ130 | +4,-2 | 9030 | 110 | 55-63 | 48-55 | ≥12 |
| Φ140 | +4,-2 | 11278 | 88 | 55-63 | 45-50 | ≥12 |
| Φ150 | +4,-2 | 13871 | 72 | 55-63 | 45-50 | ≥12 |
Production process of Chrome alloy casting iron ball:
Raw material→Secientic proportioning→Electric furnace smelting→Assay before furnace→Mould forming→Polishing→Heat treatment→Packing
Applied fields:
a).Mines
b).Cement plant
c).Chemical Industries
Packing:
Steel drum: 800-1000kgs/drum;
Ton bag: 1000kgs/bag.
Competitive advantage:
1.Top high cost performance;
2.Save annual steel ball use qty;
3. Increase outlet derived from the best quality .
Performance comparation:
- Steel Balls for Ball mill can save usage 40-50% than low chrome casting ball(chrome percent: 5%), improve outlet 10% at least than low chrome casting ball.
- Steel Balls for Ball mill can save usage 20-25% than medium chrome casting ball(chrome percent: 5% ~ 10%), improve outle
