Magnesia iron spinel bricks are made of good synthetic spinel raw materials and special technology.
MgO: 85%
Fe2O3: 4-6%
Bulk Density: 2.90-2.95g/cm3
High thermal conductivity
Excellent structural flexibility
Magnesia Iron Spinel Brick
Description
Magnesia iron spinel brick is made of composite spinel and high-purity magnesia, adding specific mineralizer, high-pressure molding and high-temperature sintering.
Features
- High compressive strength.
- Good thermal shock stability.
- Good thermal creep performance.
- High softening temperature under load.
Specification
| Type | KR-MFe-85A | KR -MFe-85B | KR -MFe-85C |
|---|---|---|---|
| MgO (%) | 85 | 85 | 85 |
| Al2O3 (%) | 3~5 | 3~5 | 3~5 |
| Fe2O3 (%) | 4~6 | 4~6 | 4~6 |
| SiO2 | 1.5 | 1.8 | 2.0 |
| Bulk Density (g/cm3) | 2.95 | 2.93 | 2.90 |
| Apparent Porosity (%) | 17 | 17 | 17 |
| Cold Crushing Strength (Mpa) | 55 | 50 | 45 |
| Refractoriness Under Load (T6.0,9) | 1600 | 1550 | 1500 |
| Thermal Shock Resistance (950℃-Air Cooling) (times) | 100 | 90 | 90 |
| Thermal Conductivity (W/m.K) | 2.6 | 2.6 | 2.4 |
| Thermal Expansion (1400℃) % | 1.6 | 1.6 | 1.6 |
Application
Magnesia iron spinel bricks are mainly used in the firing zone of cement kilns, and are also suitable for key parts of SP and NSP kilns with high kiln temperature, fast rotation speed, strong alkali erosion ability and large mechanical load.
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