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Product introduction of Fire Clay bricks
Fire Clay bricks, also known as fired bricks, are man-made small blocks used in construction, easy to process, low price. Clay refractory material is rich in raw materials, with clay as the main raw material, after mud treatment, molding, drying and roasting, there are solid and hollow respectively.
Features of Fire Clay bricks
The fire clay brick is weakly acidic at high temperature, and its resistance to alkaline slag erosion is slightly poor, but it increases with the increase of Al2O3 content. The thermal stability is better than that of silicon brick and magnesium brick.
More relevant refractory products: Ceramic fiber paper
Parameters of Fire Clay bricks
| Item/Grade | SK-30 | SK-32 | SK-34 | SK-35 |
| Al2O3% (≥) | 30 | 35 | 38 | 45 |
| Fe2O3% (≤) | 2.5 | 2.5 | 2 | 2 |
| Refractoriness(SK) | 30 | 32 | 34 | 35 |
| Refractoriness underload, 0.2MPa, °C (≥) | 1250 | 1300 | 1360 | 1420 |
| Apparent porosity (%) | 22-26 | 20-24 | 20-22 | 18-20 |
| Bulk density (g/cm³) | 1.9-2.0 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 |
| Cold crushing strength ,MPa (≥) | 40 | 45 | 30 | 40 |