Corundum wear-resistant castable has high wear resistance and high pressure strength, refractoriness up to 1900 degrees Celsius, this product is made of electrofused white corundum or alumina as refractory aggregate, adding a variety of ultrafine powder and calcium aluminate cement binding agent, mixed in proportion to modulation of the indefinite refractory material. It has good overall stability, good integrity of furnace lining, long service life, convenient construction, and can be shaped arbitrarily.
It is suitable for various metallurgical industrial furnaces, chemical industrial furnaces, waste incinerators and CFB boilers.
Corundum wear-resistant castable performance index
| Grade | GJ80 | GJ90 | GJ95 |
| Al2O3 content,% ≥ | 80 | 90 | 95 |
| Bulk density,g/cm3 ≥ | 2.7 | 2.8 | 3 |
| Flexural strength,MPa ≥ | 9 | 10 | 11 |
| Compressive strength,MPa ≥ | 60 | 60 | 60 |
| Linearity of change,% ≤ | ±0.5 | ±0.5 | ±0.5 |
| Maximum use temperature,℃ | 1650 | 1700 | 1800 |
