Corundum Mullite Bricks
This product uses high-quality mullite and high-purity corundum as the main raw materials, added with special additives, and is formed under high pressure and fired at high temperature. It has the characteristics of high load softening temperature, dense structure, low porosity, high strength, and good corrosion resistance.
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Thermal shock resistance
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Elevated temperature creep
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Erosion resistance
Product Introduction
This product uses high-quality mullite and high-purity corundum as the main raw materials, added with special additives, and is formed under high pressure and fired at high temperature. It has the characteristics of high load softening temperature, dense structure, low porosity, high strength, and good corrosion resistance.
Product Specifications
| Index | GM-88 | GM-85 | GM-80 | GM-75 |
| Al2O3（%） ≥ | 88 | 85 | 80 | 75 |
| Bulk Density（g/cm3 ） ≥ | 2.9 | 2.8 | 2.7 | 2.6 |
| Apparent Porosity（%） | 16 | 17 | 19 | 20 |
| Cold Compressive Strength（MPa） ≥ | 100 | 90 | 90 | 80 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃) ≥ | 1700 | 1650 | 1630 | 1630 |
| Permanent Linear Change（1500℃ ×2h）（%） | -0.1 ～ 0.1 | -0.1 ～ 0.1 | -0.2 ～ 0.2 | -0.2 ～ 0.2 |
| Index | HWM-85 | HWM-80 |
| Al2O3（%） ≥ | 85 | 80 |
| Bulk Density（g/cm3 ） ≥ | 3 | 2.85 |
| Apparent Porosity（%） ≤ | 17 | 18 |
| Cold Compressive Strength（MPa） ≥ | 100 | 90 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃) ≥ | 1700 | 1680 |
| Thermal Shock Resistance（1100℃ Cycle） ≥ | 10 | - |
| Permanent Linear Change（1500℃ ×2h）（%） | -0.1 ～ 0.1 | - |
| Index | HWGM-90 | HWGM-85 | HWGM-80 | HWGM-75 |
| Al2O3（%） ≥ | 90 | 85 | 80 | 75 |
| Bulk Density（g/cm3 ） ≥ | 2.9 | 2.85 | 2.75 | 2.6 |
| Apparent Porosity（%） ≤ | 16 | 17 | 19 | 19 |
| Cold Compressive Strength（MPa） ≥ | 120 | 100 | 90 | 80 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃) ≥ | 1700 | 1680 | 1650 | 1630 |
| Permanent Linear Change（1500℃ ×2h）（%） | -0.1 ～ 0.1 | -0.1 ～ 0.1 | -0.2 ～ 0.2 | -0.2 ～ 0.2 |
| lndex | HWGM-90 | HWGM-85 | HWGM-80 |
| Al2O3（%） ≥ | 90 | 85 | 80 |
| Fe2O3（%） ≤ | 0.8 | 0.8 | 1 |
| Bulk Density（g/cm3 ） ≥ | 2.9 | 2.85 | 2.75 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃) ≥ | 1700 | 1680 | 1650 |
| Apparent Porosity（%） ≤ | 16 | 16 | 18 |
| Cold Compressive Strength（MPa） ≥ | 100 | 100 | 90 |
| Thermal Conductivity（1000℃ ±25℃)[W/（m · K）] ≤ | 2.2 | 2.2 | 2 |
| Thermal Expansion Rate（1000℃)(%) ≤ | 0.8 | 0.7 | 0.7 |
| Thermal Shock Resistance（1100℃ Cycle） ≥ | 10 | 10 | 10 |
| lndex | HWGM-90 | HWGM-85 | HWGM-80 |
| Al2O3（%） ≥ | 90 | 85 | 80 |
| Bulk Density（g/cm3 ） ≥ | 2.9 | 2.85 | 2.75 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃) ≥ | 1700 | 1680 | 1650 |
| Apparent Porosity（%） ≤ | 16 | 16 | 18 |
| Cold Compressive Strength（MPa） ≥ | 100 | 100 | 90 |
| Thermal Conductivity（1000℃ ±25℃)[W/（m · K）] ≤ | 2.2 | 2.2 | 2 |
| Thermal Expansion Rate（1000℃)(%) ≤ | 0.8 | 0.7 | 0.7 |
| Thermal Shock Resistance（1100℃ Cycle） ≥ | 10 | 10 | 10 |
| Index | HWGM-75 | HWGM-80 |
| Al2O3（%） ≥ | 75 | 80 |
| Fe2O3（%） ≤ | 1.2 | 1.5 |
| Bulk Density（g/cm3 ） ≥ | 2.65 | 2.75 |
| Apparent Porosity（%） ≤ | 16 | 19 |
| Cold Compressive Strength（MPa） ≥ | 80 | 90 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃) ≥ | 1550 | 1600 |
| Permanent Linear Change（1400℃ ×2h）（%） | -0.4 ～ 0.1 | -0.3 ～ 0.2 |
| Index | HWGM-75 | HWGM-80 |
| Al2O3（%） ≥ | 75 | 80 |
| Bulk Density（g/cm3 ） ≥ | 2.65 | 2.75 |
| Apparent Porosity（%） ≤ | 16 | 19 |
| Cold Compressive Strength（MPa） ≥ | 80 | 90 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃) ≥ | 1550 | 1600 |
| Permanent Linear Change（1400℃ ×2h）（%） | -0.4 ～ 0.1 | -0.3 ～ 0.2 |
- Grade:
- GM-88
- GM-85
- GM-80
- HWM-85
- HWM-80
- HWGM-90
- HWGM-85
- HWGM-80
- HWGM-90
- HWGM-85
- HWGM-80
- HWGM-80
