Description
Magnesia chrome ramming mass is a high-performance refractory material. Its main crystalline phases are periclase and magnesia-chrome spinel. Made primarily from high-purity magnesia and chromite concentrate, all grades offer excellent compressive and flexural strength at different heat-treatment temperatures. The product is designed for ramming installation and maintains stable performance at high temperatures. It features high mechanical strength, good thermal shock resistance, and excellent chemical stability.
Specification
| Properties | Grade | ||||
| CALUM50 C20 RA | CALUM60 C16 RA | CALUM70 C12 RA | CALUM80 C8 RA | ||
| ω(MgO) / % ≥ | 48 | 58 | 68 | 78 | |
| ω(Cr2O3) / % ≥ | 20 | 16 | 12 | 8 | |
| ω(SiO2) / % ≤ | 4.0 | 4.0 | 4.0 | 4.0 | |
| BD / (g/cm3) ≥ | 2.80 | 2.75 | 2.70 | 2.65 | |
| CCS | 110°C / MPa ≥ | 30 | 30 | 25 | 25 |
| 1100°C / MPa ≥ | 40 | 40 | 30 | 30 | |
| 1350°C / MPa ≥ | 50 | 50 | 40 | 40 | |
| CMOR | 110°C / MPa ≥ | 3 | 3 | 2 | 2 |
| 1100°C / MPa ≥ | 4 | 4 | 3 | 3 | |
| 1350°C / MPa ≥ | 5 | 5 | 4 | 4 | |
