Description
Magnesite Brick
Raw materials
- High purity dead burned magnesia
- Fused Magnesia
- others
Classification of Magnesite Brick
Magnesite brick has MgO as the main component and periclase as the main crystal phase, which is classified into the following types:
- General magnesite brick
- Directly combine magnesite brick
- Magnesia silica brick
- Magnesia chrome brick
- Forsterite brick
- Magnesia alumina brick
- Magnesia calcium brick
Advantage
- Higher refractoriness underload
- Good resistance to alkali slag erosion
- High initial refractoriness under load
Application
- Basic open hearth furnace for steelmaking
- Hearth and wall of electric furnace
- Permanent lining of oxygen converter
- Non-ferrous smelting furnace
- High-temperature tunnel kiln
- Lining of rotary cement kiln
- Hearth and wall of heating furnace
- Checker brick for regenerative chamber of glass melting furnace
| Magnesia Brick | |||||
| Index | Brand | ||||
| MZ-89 | MZ-91 | MZ-95 | MZ-97 | ||
| MgO % ≥ | 89 | 91 | 94.5 | 96.5 | |
| CaO % ≤ | 3 | 2.5 | 2.0 | 1.5 | |
| Apparent Porosity % ≤ | 20 | 18 | 17 | 16 | |
| Cold Crushing Strength Mpa ≥ | 50 | 60 | 65 | 70 | |
| Refractoriness underload(0.2Mpa) ℃ | 1540 | 1550 | 1620 | 1700 | |
| The Volume Density (g/m2) | 2.8 | 2.90 | 2.95 | 3.1 | |
| Reheating Linear Change (%) 1650 ℃ 2h | 0.6 | 0.5 | 0.4 | 0.4 | |
| Reference Standard | GB2275-87 | ||||
