Product list
Refractory Brick
SD Tech's refractory bricks are generally categorized into high-alumina bricks (SK36, 37, 38), which use high-purity alumina raw materials, and bricks made from fireclay and chamotte (SK34).
These products are manufactured through particle size adjustment, high-pressure molding, and high-temperature sintering of high-quality raw materials, and are in highly diverse demand.
1. Use
- Cement and glass, chemical industry, and power industry
2. Specification
| Division | Fireclay bricks | Alumina brick | ||||
|---|---|---|---|---|---|---|
| SK 32 | SK 32 | SK 32 | SK 32 | SK 32 | SK 32 | |
| Al₂O₃(%) | 38 | 42 | 48 | 55 | 65 | 75 |
| Fire resistance(℃) | 1,670 | 1,730 | 1,750 | 1,770 | 1,790 | 1,790 |
| load softening point(℃) | 1,320 | 1,400 | 1,450 | 1,470 | 1,500 | 1,520 |
| Forming rate(%) ℃x2h | 1,350℃ x -0.50 |
1,350℃ x -0.50 ~ -0 |
1,450℃ x -0.4 ~ +0.1 |
1,500℃ x -0.4 ~ +0.1 |
1,500℃ x -0.4 ~ +0.1 |
1,500℃ x -0.4 ~ +0.1 |
| Porosity(%) | 24 | 22 | 22 | 23 | 23 | 23 |
| Compressive strength(Mpa) | 18 | 28 | 35 | 40 | 45 | 50 |