Physical and Chemical Indicators of High Alumina Low Cement Castables
High aluminum low cement castable is a high-quality amorphous refractory. It has the advantages of high density, high strength, low porosity and wear resistance, thermal shock resistance, and corrosion resistance. However, if it is improperly baked, it will peel off or explode.
Its physical and chemical indicators are as follows:
| Indicators | Data | |
| Maximum use Temperature (°C) | ≥1400 | |
| Refractoriness (°C) | ≥1785 | |
| Dry Volume Density at 110°C (kg/m³) | ≥2800 | |
| Cold Compressive Strength (MPa) | 110℃ | ≥100 |
| 1000℃ | ≥110 | |
| 1300℃ | ≥140 | |
| Reheat Shrinkage (%) | 1000℃ | < +0.3 |
| 1300℃ | < +0.7 | |
| Thermal Conductivity at 600℃ (W/mK) | 2.3 | |
| Al2O3 (%) | ≥81 | |
| SiO2 (%) | 11.0 | |
| Fe2O3 (%) | 1.2 | |
