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High density alumina bricks SK40 description
High density alumina brick usually refers to the refractory brick with Al2O3 content above 48% and fire resistance at about 1770℃. High alumina brick has good slag resistance.
High density alumina bricks SK40 features
- High temperature resistance
- Resistance to chemical attack
- Thermal stability
- Slag resistance
More refractory product: High Abrasion Resistance Non-Stick Aluminum Castable
High density alumina bricks SK40 index
| Refractory Fire Bricks | 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 |
High density alumina bricks SK40 application
The characteristics of high density alumina bricks are mainly reflected in high temperature resistance, chemical internal erosion resistance, thermal shock resistance, etc. High aluminum bricks are widely used in various industries such as cement, glass building materials industry, iron and steel smelting industry, petrochemical industry, etc.