Refractory Materials
SINTERED MAGNESIA-ALUMINA SPINEL
| ITEM | 90 | 76 | 66 | 50 | 70-30 |
| Al₂O₃(%) | 87-90 | 75-77 | 64-66 | 49-51 | 58-62 |
| MgO(%) | 8-11 | 22-24 | 32-34 | 48-50 | 28-32 |
| CaO(%) | 0.25 | 0.3 | 0.5 | 0.65 | 1.5 |
| SiO₂(%)< | 0.18 | 0.2 | 0.3 | 0.35 | 3 |
| Fe₂O₃(%)< | 0.17 | 0.2 | 0.3 | 0.4 | 2 |
| Bulk Density (g/cm³)≥ | 3.26 | 3.3 | 3.25 | 3.25 | 3.15 |
| Size | 0-30mm or required | ||||
