| Product | Magnesia Alumina Spinel Bricks | Magnesia Alumina Spinel Zirconium Bricks |
Magnesia Iron Spinel Bricks | Magnesia Alumina Zirconium Bricks |
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| Model | MLJ-85A | MLJ-93A | MLJ-95A | MLJ-85B | MLJ-93B | MLJ-95B | MLJZ-93A | MLJZ-93B | MLJZ-R63A | MLJZ-R63B | MZ-96A | MZ-94B | |
| MgO% ≥ | 85 | 88 | 93 | 82 | 85 | 90 | 92 | 88 | 85 | 80 | 92 | 88 | |
| Al2O3 ≥ | 9 | 5 | 3 | 9 | 5 | 3 | 5 | 5 | 3 | 3 | 5 | 5 | |
| Fe2O3≤ | 0.7 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.7 | 0.8 | 7.5 | 7.5 | 0.8 | 0.9 | |
| SiO2 ≤ | 0.6 | 0.8 | 0.7 | 2.5 | 2 | 2.5 | 1 | 2.5 | 0.9 | 2.0 | 1 | 2.5 | |
| ZiO2≥ | - | - | - | - | - | - | 1-3 | 1-3 | - | - | 1-3 | 1-3 | |
| Apparent Porosity≤ | 16-18 | 16-18 | 16-18 | 17-18 | 17-18 | 17-18 | 17-18 | 17-18 | 16-17 | 16-17 | 17-19 | 17-19 | |
| Bulk Density≥ | 2.85 | 2.85-3.0 | 2.85 | 2.8 | 2.85 | 2.82 | 2.85 | 2.8 | 30. | 2.9 | 2.9 | 2.8 | |
| Cold Crushing Strength≥ | 45 | 45 | 45 | 40 | 40 | 40 | 50 | 50 | 50 | 45 | 50 | 45 | |
| 0.2.Mpa Refractoriness Under Load（℃)≥ | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1660 | 1660 | 1630 | 1700 | 1650 | |
| Thermal Expansion 1400℃ | - | 1.6 | 1.6 | ||||||||||
| Thermal Shock Resistance | 1100℃ water cooling, times | 12 | 12 | 12 | 10 | 10 | 10 | 12 | 10 | 10 | 8 | 8 | 6 |
| 950℃ water cooling, times |
100 | 100 | 100 | 80 | 80 | 80 | 100 | 80 | 100 | 80 | 30 | 25 | |
| Heat Conductivity | 2.8 | 2.9 | 3.0 | 2.8 | 2.9 | 3.0 | 3.0 | 2.9 | 2.5 | 2.5 | 4.5 | 4.4 | |
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