Magnesia Iron Spinel Brick
Magnesium Aluminum Spinel Brick
Alumina Magnesia Carbon Brick
Magnesia Brick
Magnesia Zirconia Brick
Magnesia Chrome Brick
Magnesia Carbon Brick
Technical Data
| Item | M-98 | M-97A | M-97B | M-95 | M-91 | |
|---|---|---|---|---|---|---|
| MgO, % | ≥ | 97.5 | 97.0 | 96.5 | 95.0 | 91.0 |
| SiO2, % | ≤ | 1.00 | 1.20 | 1.50 | 2.00 | / |
| CaO, % | ≤ | / | / | / | 2.00 | 3.00 |
| Apparent Porosity, % | ≤ | 16 | 16 | 18 | 16 | 18 |
| Bulk Density, g/cm³ | ≥ | 3.00 | 3.00 | 2.95 | 2.90 | |
| Cold Crushing Strength, MPa | ≥ | 60 | 60 | 60 | 60 | |
| 0.2MPa Refractoriness Under Load, ℃ | ≥ | 1700 | 1700 | 1650 | 1560 | |
| Permanent Linear Change, % | 1650℃*2h -0.2~0 | 1650℃*2h -0.3~0 | 1600℃*2h -0.5~0 |
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Applications of Magnesia Bricks
Mainly used in alkaline open-hearth furnaces, electric furnace bottoms and furnace walls for steelmaking.
