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LONGKETER supplying a comprehensive range of Magnesia Spinel Bricks are mainly used in non-ferrous smelting, transition zone before and after cement rotary kiln, high temperature zone of lime kiln, glass heat-accumulated type, top of reverberatory furnace, etc.

Magnesite Spinel Bricks Product Data
| Type | Magnesite-Alumina Spinel Brick | Magnesite-Ferrum Spinel Brick | |||
| MA-5 | MA-10 | MA-15 | MF-80 | MF-75 | |
| MgO | ≥85 | ≥80 | ≥80 | ≥84 | ≥80 |
| Al2O3 | 5-7 | 8-10 | 15-17 | ≤2.5 | ≤2.5 |
| Fe2O3 | – | – | – | 6.3 | 4.4 |
| Cr2O3 | – | – | – | ≥3.6 | ≥3.5 |
| Apparent porosity% | ≤18 | ≤18 | ≤17 | ≥17 | ≥17 |
| Bulk Density(Kg/m3) | ≥2900 | ≥2900 | ≥2900 | ≥2980 | ≥3050 |
| Refractoriness Under Load 0.2Mpa °C | ≥1620 | ≥1650 | ≥1650 | 1650 | 1570 |
| Cold Crushing Strength Mpa | ≥40 | ≥40 | ≥40 | ≥45 | ≥45 |
| thermal Shock Resistance (1100°C water cooling,times) | ≥6 | ≥8 | ≥10 | ≥4 | ≥4 |




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