Corundum Fire Brick Introduction
Corundum brick is a refractory product with the content of alumina more than 90%, which have the characteristics of high cold compressive strength (up to 340MPa), high load softening start temperature (more than 1700 degrees C), strong resistance to acid or basic slag, metal and glass liquid. Corundum fire bricks are fired at high temperatures to form a matrix with mullite, mullite-corundum or corundum that has excellent volume stability.
Corundum Fire Brick Properties
- High cold compressive strength (up to 340MPa)
- High load softening start temperature (more than 1700 degrees C)
- Strong resistance to acid or basic slag, metal and glass liquid
- Excellent volume stability
- Good chemical stability
- Strong resistance to erosion, but thermal shock resistance is weak
Corundum Fire Brick Physical &Chemical Index
| Corundum Brick | ||||||
| Item | Index | |||||
| Unit | CMC | C90 | C95 | C98 | ||
| Al2O3 ≥ | % | 85 | 90 | 95 | 98 | |
| Fe2O3 ≤ | % | 0.5 | 0.8 | 0.6 | 0.4 | |
| Cr2O3 ≥ | % | — | — | — | — | |
| Apparent porosity ≤ | % | 20 | 20 | 20 | 20 | |
| Bulk density ≥ | g/cm3 | 2.8 | 3.0 | 3.05 | 3.1 | |
| Cold crushing strength ≥ | Mpa | 40 | 80 | 80 | 80 | |
| Refractoriness under load (0.2Mpa) ≥ | ℃ | 1500 | 1700 | 1700 | ＞1700 | |
| Reheating linear change | 1550℃*2h | % | — | ±0.1 | ±0.1 | — |
| 1600℃*2h | % | — | — | — | ±0.1 | |
Corundum Fire Brick Application
Corundum Brick is a kind of high alumina refractory bricks made for extreme demands, so corundum refractory bricks are widely used in the lining material of high temperature, high pressure, chemical corrosion and mechanical wear of the petrochemical thermal device.
Corundum Fire Brick Manufacturer
RS Refractories manufacturer distributes Corundum Bricks of the best quality at the most competitive price, we adopt the high quality raw material of corundum refractory materials and produced by advanced corundum refractory brick production line, we are pleasure to provide you with the best quality products. Want to get more information, , contact with us!
