Type | HJB-92A | HJB-92 | HJB-75 | HJB-68 |
---|---|---|---|---|
Al2O3 (%) | 92±0.5 | 92±1.0 | 75±2.0 | 68±2.0 |
ZrO₂ (%) | Nil | Nil | Nil | Nil |
Density (g/cm³) | 3.67-3.72 | 3.65-3.70 | 3.20-3.25 | 2.95-3.02 |
Water Absorption (%) | Nil | Nil | <0.01 | <0.01 |
Hardness (MOHS) | 9 | 9 | 8 | 8 |
Wear Loss (%) | 0.05±0.01 | 0.10±0.02 | 0.15±0.02 | 0.25±0.05 |
Color | White | White | Grey | Yellowish |
Size/mm | Φ10-20 | Φ25-30 | Φ40-60 | Φ70-90 |
---|---|---|---|---|
Tolerance/mm | ±0.5 | ±1.0 | ±1.5 | ±2.0 |