White fused aluminium oxide coated abrasives
| Physical properties | Chemical compositions | Content (%) | |
| Crystal body | Hexagonal | Al2O3 | ≥99% |
| Main crystal body | Al2O3 | ||
| Color | white | Na2O | ≤0.4 |
| True density | ≥3.9 g/cm3 | ||
| Bulk density | 1.75-1.95 g/cm3 | SiO2 | ≤0.1 |
| Mohs’ hardness | 9 | ||
| Linear expansion coefficient | 8.3×10-4 |
Fe2O3 |
≤0.1 |
| Loss on ignition | ≤0.06% | ||
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