





Sintered Magnesia Brick
This product uses high-purity microcrystalline magnesium sand as raw material, which is formed under high pressure and sintered at high temperature. It has the characteristics of low impurity content, dense organizational structure, high strength, erosion resistance, etc.
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Erosion resistance
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Erosion influence
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High strength
Product Introduction
This product uses high-purity microcrystalline magnesium sand as raw material, which is formed under high pressure and sintered at high temperature. It has the characteristics of low impurity content, dense organizational structure, high strength, erosion resistance, etc.
Product Specifications
| Index | HWMZ-91 | HWMZ-93 | HWMZ-95 | HWMZ-97 | HWMZ-98 |
| MgO (%) ≥ |
91 | 93 | 95 | 97 | 97.5 |
| Apparent Porosity(%)≤ | 18 | 18 | 18 | 17 | 16 |
| Bulk Density(g/cm3 )≥ | 2.9 | 2.9 | 2.92 | 2.95 | 2.95 |
| Cold Compressive Strength(MPa)≥ | 50 | 50 | 60 | 60 | 60 |
| 0.2MPa Refractoriness Under Load(T0.6 ℃)≥ | 1560 | 1600 | 1650 | 1680 | 1700 |
| Permanent Linear Change(1650℃ ×2h)(%) | -0.5~0 | -0.5~0 | -0.4~0 | -0.3~0 | -0.2~0 |
| Index | HWMZ-92 | HWMZ-95 | |
| MgO (%) ≥ |
92 | 95 | |
| Apparent Porosity(%)≤ | Straight bricks | 18 | 17 |
| Cylindrical bricks | 19 | 18 | |
| Bulk Density(g/cm3 )≥ | Straight bricks | 2.9 | 2.95 |
| Cylindrical bricks | 2.88 | 2.92 | |
| Cold Compressive Strength(MPa)≥ | Straight bricks | 60 | 60 |
| Cylindrical bricks | 40 | 40 | |
| 0.2MPa Refractoriness Under Load (T0.6 ℃)≥ |
Straight bricks | 1560 | 1680 |
| Cylindrical bricks | 1530 | 1650 | |
| Thermal Shock Resistance (950℃Wind Cycle)≥ |
Straight bricks | 8 | 10 |
| Cylindrical bricks | 8 | 10 | |
- Grade:
- HWMZ-92
- HWMZ-95
- HWMZ-91
- HWMZ-93
- HWMZ-95
- HWMZ-97
- HWMZ-98









