Magnesia compound spinel brick (directly bonded magnesia chrome brick)
| Grade/ltem | Apparent porosyty% | Bluk denselyg/cm³ | Cold crushing strengt hMpa | Load softening point℃ | Burn down | SiO2 |
CaO |
Fe2O3 | Al2O3 | MgO% |
|---|---|---|---|---|---|---|---|---|---|---|
| Magnesium-aluminum spinel brick | 19 | 2.92 | 35 | 1650 | 0.33 | 2.98 | 2.07 | 1.36 | 5.60 | 87.66 |
| 18 | 2.95 | 38 | 1700 | 0.32 | 2.00 | 1.96 | 1.28 | 9.30 | 85.14 |
