Magnesia-Alumina Brick is widely used in open hearth furnaces of steelmaking as well as non-ferrous furnaces.
Magnesia-Alumina Brick
Category | Magnesia-Alumina Brick | Magnesia-Alumina Spinel Brick | |||||||
HLML -80 | HLML -85 | HLML -75A | HLML -75B | HLML 80 | HLML -85A | HLML -85B | HLML -93A | HLML -93B | |
MgO % ≥ | 80 | 85 | 75 | 75 | 80 | 85 | 82 | 88 | 85 |
Al2O3 % ≤ | 5-10 | 5-8 | 13 | 13 | 9 | 9 | 9 | 5 | 5 |
SiO2 % ≤ | 2.0 | 2.0 | 0.6 | 1.0 | 1.5 | 0.6 | 2.5 | 0.6 | 2.0 |
Apparent Porosity %≤ | 18 | 18 | 17 | 17 | 17 | 16 | 17 | 16 | 17 |
Bulk Density (g/cm3) | 2.95 | 3.05 | 2.95 | 2.95 | 2.95 | 2.95 | 2.95 | 2.95 | 2.95 |
Cold Crushing Strength MPa≥ | 40 | 40 | 45 | 45 | 45 | 45 | 40 | 45 | 40 |
Refractoriness Under Load °C≥ | 1600 | 1650 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 |
Thermal Shock Resistance 1100°C Water | 3-6 | 5 | 10 | 10 | 10 | 12 | 10 | 12 | 10 |
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Magnesia-Alumina Brick calcined brick
