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The main products are contents:mullite light-weight brick，high-temperature bonder and indeterminate from fireproofing material etc.
classification
Application
It is widely used in petrochemical carbide furnace, synthesis ammonia reburner, ethylene cracking furnace, carbon black furnace, gasification furnace, etc., the service life reaches or surpasses the imported like products.
Feature
·Heat resistance
·Anti-stripping
·High wear resistance
·Low thermal conductivity
Physical and chemical indicators:
| name | Corundum castable | Alumina hollow ball castable | High alumina castable | Clay castable | ||||
| Brand name | CC-32 | CC-31 | AC-1.4 | AC-1.6 | LC-2.4 | LC-2.5 | NC-2.2 | |
| AL2O3(%) ≥ | 98 | 96 | 92 | 94 | 60 | 75 | 40 | |
| CaO (%) ≥ | 0.5 | 1.0 | 1.0 | 0.5 | 1.8 | 2.5 | 4.2 | |
| Bulk density （g／cm3） | 110℃×24h | 3.2 | 3.1 | 1.4 | 1.6 | 2.4 | 2.5 | 2.3 |
| 1450℃×4h | 3.15 | 3.05 | 1.3 | 1.5 | 2.30 | 2.40 | 2.10 | |
| Compressive strength（Mpa） | 110℃×24h | 32 | 26 | 12 | 14 | 60 | 70 | 75 |
| 1450℃×4h | 45 | 55 | 24 | 30 | 85 | 93 | 98 | |
| Flexural strength（Mpa） | 110℃×24h | 6 | 5 | 1.5 | 2.5 | 8 | 10 | 11 |
| 1450℃×4h | 10 | 8 | 4 | 7 | 12 | 14 | ||
| Heating wire changes(%) | 1000℃×4h | ±0.2 | ±0.5 | |||||
| 1500℃×4h | ±0.2 | ±0.3 | ±0.5 | ±0.5 | ±0.5 | |||
| Proportion of water (%) | 5-5.5 | 5.5-6 | 12-15 | 11-14 | 6-8 | 6.5-7.5 | 7-8 | |
| Highest use temp（℃） | 1600 | 1500 | 1500 | 1500 | 1350 | 1400 | 1200 | |
The actual parameters can be adjusted according to the requirements of users.