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Product introduction of high alumina refractory bricks:
High alumina brick is a kind of alumina content more than 48% aluminum silicate based refractory. It is made of bauxite raw materials or high Al2O3 materials calcined, high thermal stability, refractoriness above 1770℃. And it has good slag resistance.
Features of high alumina refractory bricks:
High temperature resistance.
Resist chemical attack.
Thermal stability.
Anti-scum.
Parameters of high alumina refractory bricks:
| Item/Grade | SK-36 | SK-37 | SK-38 | SK-40 |
| AL2O3% (≥) | 55 | 65 | 70 | 82 |
| Fe2O3% (≤) | 2 | 2 | 2 | 2 |
| Refractoriness(SK) | 36 | 37 | 38 | 40 |
| Refractoriness underload, 0.2MPa, °C (≥) | 1450 | 1480 | 1530 | 1600 |
| Apparent porosity (%) | 20-23 | 20-23 | 20-22 | 18-20 |
| Bulk density (g/cm³) | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
| Cold crushing strength ,MPa (≥) | 45 | 50 | 60 | 70 |
Applications of high alumina refractory brick
The characteristics of high alumina brick are mainly reflected in high temperature resistance, chemical internal erosion resistance, thermal shock resistance, etc. High quality performance is widely used in various industries such as cement, glass building materials industry, iron and steel smelting industry, petrochemical industry, etc.