Description
Chrome corundum castable is a high-performance refractory material made primarily from high-purity alumina and chromium oxide. It is available in multiple grades with different alumina-to-chromium oxide ratios to suit various high-temperature operating conditions. Designed for casting installation, the material maintains stable performance at elevated temperatures. It offers high mechanical strength, excellent wear resistance, good thermal shock stability, and outstanding resistance to erosion and spalling.
Specification
| Properties | Grade | |||||
| CALUS75 C20 | CALUS80 C15 | CALUS85 C10 | CALUS90 C5 | CALUS80 C | ||
| ω(Al2O3) / % ≥ | 75 | 80 | 85 | 90 | 80 | |
| ω(Cr2O3) / % ≥ | 20 | 15 | 10 | 5 | 3 | |
| ω(SiO2) / % ≤ | 2.0 | 2.0 | 2.0 | 2.0 | 15 | |
| ω(Fe2O3) / % ≤ | 0.5 | 0.5 | 0.5 | 0.5 | 1.8 | |
| ω(CaO) / % ≤ | 1.5 | 1.5 | 1.5 | 1.5 | 1.8 | |
| BD / (110°C/g/cm3) ≥ | 3.20 | 3.15 | 3.10 | 3.05 | 2.80 | |
| CCS | 110°C/MPa ≥ | 90 | 90 | 90 | 90 | 90 |
| 1100°C/MPa ≥ | 100 | 100 | 100 | 100 | 100 | |
| 1350°C/MPa ≥ | 110 | 110 | 110 | 110 | 110 | |
| CMOR | 110°C/MPa ≥ | 10 | 10 | 10 | 10 | 10 |
| 1100°C/MPa ≥ | 12 | 12 | 12 | 12 | 12 | |
| 1350°C/MPa ≥ | 12 | 12 | 12 | 12 | 13 | |
| PLC | 1100°C / % ± | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 |
| 1350°C / % ± | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 | |
