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Product introduction of magnesia brick
Magnesia brick mainly includes ordinary magnesium brick, medium magnesium brick, high purity magnesium brick, fused magnesium brick (combined with magnesium brick). Ordinary fired magnesia brick, often referred to simply as fired magnesia brick (magnesia brick), is the most productive and widely used alkaline brick.
Common magnesia brick: There are two kinds of magnesia used to produce magnesia brick: natural magnesia and seawater magnesia. The mass fraction of MgO in magnesia is between 89% and 98%. The limit particle size is generally 3 ~ 5mm.
Application of magnesia brick:
It is mainly used for steel making alkaline open hearth, electric hearth and hearth wall, permanent lining of oxygen converter, non-ferrous metal smelting furnace, high temperature tunnel kiln, lining of calcined magnesia brick and cement rotary kiln, hearth and hearth wall of heating furnace, lattice brick of regenerator chamber of glass kiln, etc.
More relevant refractory products: Ceramic fiber module
Parameters of magnesia brick:
| Item | MZ-91 | MZ-92 | MZ-93 | MZ-94 | MZ-97 |
| MgO, % ≥ | 91 | 92 | 93 | 94.5 | 97 |
| SiO2, % ≤ | 4 | 3.5 | 2.5 | 2 | 2 |
| Fe2O3, % ≤ | 1.3 | – | – | 1.2 | 1.2 |
| CaO, % ≤ | 2.5 | 2.5 | 2 | 1.8 | 1.8 |
| Apparent Porosity, ％ ≤ | 18 | 18 | 18 | 18 | 18 |
| Bulk Density, g/cm3 ≥ | 2.86 | 2.9 | 2.95 | 2.92 | 2.95 |
| Cold Crushing Strength Mpa, ≥ | 60 | 60 | 50 | 60 | 60 |
| 0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1570 | ≥1560 | ≥1620 | ≥1650 | ≥1700 |
| Thermal Shock Resistances 100 ℃ water cycles | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 |