Refractory Materials
FUSED MAGNESIA- ALUMINA SPINEL
Fused Magnesia-Alumina Spinel (fused magnesium-aluminate spinel) is made of high purity raw materials in electric arc furnaces. The maximum amount of spinel crystals is achieved by using pure raw materials and electric arc-furnaces. The product has a high thermal shock resistance, slag corrosion resistance, and good refractoriness.
| ITEMS | 90 | 75 | 65 |
| Al₂O₃(%) | 80-91 | 70-75 | 64-68 |
| MgO(%) | 8-9 | 22-28 | 30-34 |
| SiO₂(%)< | 0.3 | 0.4 | 0.5 |
| Fe₂O₃(%)< | 0.4 | 0.4 | 0.5 |
| Bulk Density (g/cm³)≥ | 3.30 | 3.30 | 3.30 |
