Semi Silica Brick
Semi-Silica Brick is an acidic alumino-silicate refractory product manufactured primarily from siliceous clay, pyrophyllite, and other silica-based refractory raw materials.The product features high refractoriness, slight expansion at elevated temperatures, excellent masonry tightness, and superior resistance to acidic slag corrosion.
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Thermal shock resistance
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Erosion resistance
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Erosion influence
Product Introduction
Semi-Silica Brick is an acidic alumino-silicate refractory product manufactured primarily from siliceous clay, pyrophyllite, and other silica-based refractory raw materials.The product features high refractoriness, slight expansion at elevated temperatures, excellent masonry tightness, and superior resistance to acidic slag corrosion. Its unique high-temperature expansion characteristics help maintain the integrity and sealing performance of furnace linings during service.Semi-Silica Brick is widely used in gas producers, industrial furnace flues, auxiliary sections of coke ovens, and other furnaces operating under acidic conditions.
Product Specifications
| Index | Parameter |
| SiO2 （%） ≥ |
65 |
| Al2O3（%）＜ | 30 |
| Apparent Porosity（%）≤ | 24 |
| Cold Compressive Strength（MPa）≥ | 30 |
| 0.2MPa Refractoriness Under Load（T0.6 ℃)≥ | 1350 |
