Silica Brick
Silica Brick is an acidic refractory product manufactured from high-quality quartzite silica, mineralizers, and bonding agents as the principal raw materials. The product contains not less than 93% SiO₂ and is characterized by excellent performance under high-temperature acidic operating conditions.
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Erosion resistance
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Heat-conductivity
Product Introduction
Silica Brick is an acidic refractory product manufactured from high-quality quartzite silica, mineralizers, and bonding agents as the principal raw materials. The product contains not less than 93% SiO₂ and is characterized by excellent performance under high-temperature acidic operating conditions.It features high refractoriness, excellent dimensional stability at elevated temperatures, a high refractoriness-under-load (RUL) temperature, and outstanding resistance to acidic slag corrosion.Silica Brick is widely used in coke ovens, glass melting furnaces, hot blast stoves, and other industrial furnaces operating under high-temperature acidic conditions.
Product Specifications
| Index | HWXBG-96a | HWZBG-96b | HWDBG-95 |
| SiO2 （%） ≥ |
96 | 96 | 95 |
| (Al2O3+2R2O）Melt Flow Index（%）≤ | 0.5 | 0.6 | 0.7 |
| Apparent Porosity（%）≤ | 21 | 21 | 22 |
| True Density（g/cm3 ）≤ | 2.34 | 2.34 | 2.34 |
| Cold Compressive Strength（MPa）≥ | 35 | 30 | 30 |
| Permanent Linear Change（1450℃ ×2h）% | +0.2 | +0.2 | +0.2 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃)≥ | 1680 | 1680 | 1670 |
- Grade:
- HWXBG-96a
- HWZBG-96b
- HWDBG-95
