Low Thermal Conductivity Mullite Brick B
This product is a new type of energy-saving and environmentally friendly product developed by our company based on more than 40 years of professional experience in the production and research and development of refractory materials for rotary kilns.
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Low thermal conductivity
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Thermal shock resistance
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Wear resistance
Product Introduction
This product is a new type of energy-saving and environmentally friendly product developed by our company based on more than 40 years of professional experience in the production and research and development of refractory materials for rotary kilns. It uses high-quality and lightweight alkali resistant mullite as the main raw material, and special additives are introduced in the production process to form a large amount of mullite mineral phase during the sintering process. The internal pores are distributed in a spherical and discontinuous state. During use, the brick surface can form a glass body, which improves the alkali corrosion resistance of the product, making it characterized by low thermal conductivity, high strength, wear resistance, high load softening temperature, and excellent thermal shock stability.
Product Specifications
| Index | HWDDR-B |
| Al2O3（%） | 35~45 |
| Bulk Density（g/cm3 ） | 2.0~2.3 |
| Apparent Porosity（%） ≤ | 18 |
| Cold Compressive Strength（MPa） ≥ | 60 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃） ≥ | 1350 |
| Thermal Shock Resistance（1100℃ Cycle） ≥ | 10 |
| Thermal Conductivity（1000℃) [ W/（m · K）] ≤ | 1.3 |
- Grade:
- HWDDR-B
- HWDDR-A
