Description
Magnesia Chrome Brick
Raw materials base
- Fused Magnesia
- Fused MgO-Cr2O3
- Chrome ore powder
Advantage
- Excellent slag resistance;
- High Strength;
- Good corrosion resistance;
- Good fatigue resistance;
Application
- AOD refining furnace;
- DH and RH degassers;
- VOD refining furnace lining;
- non-ferrous furnace lining;
- Cement kiln.
Specification
| Item | Grade A |
| MgO% | 58-65 |
| Al2O3% | 6.8 Max |
| SiO2% | 4.0 max |
| Fe2O3% | 7-12 max |
| CaO % | 1.5 Max |
| Cr2O3 % | 16-19 |
| Bulk density gm/cc | 2.8-3.2 |
| Apparent porosity % | 18max |
| Cold crush strength N/mm2 | 30min |
| Refractoriness under Load
Ta Tb |
1700C min 1750C min |
| Specific Heat (kJ.kg.k-1 | 0.9 |
| Thermal Expansion at 1200C % | 1.2 Max |
| Thermal Conductivity(W/mK)
600C 1200C |
2.2 2.2 |
