Magnesia-alumina brick
Product parameter
Production process：Primary magnesia and high quality high aluminum material as the main raw materials, through high pressure molding, high temperature sintering. The main crystalline phase of the product is magnesia-aluminum spinel and cubic magnesite, which has high high temperature strength and good thermal shock stability, and strong resistance to alkaline slag erosion.
Main application：High temperature kiln furnace wall, side wall, kiln top and other parts.
| Index/brand | ML-80A | ML-80B | ML-85A | ML-85B |
|---|---|---|---|---|
| MgO(%)≥ | 80 | 80 | 85 | 85 |
| Al2O3(%)≥ | 2-10 | 2-10 | 4-8 | 4-8 |
| 0.2Mpa load softening starting temperature(℃)≥ | 1600 | 1580 | 1650 | 1630 |
| Apparent porosity(%)≤ | 18 | 20 | 18 | 19 |
| Cold crushing strength(Mpa)≥ | 45 | 35 | 45 | 40 |
| Thermal shock stability 1100℃ Water cooling (secondary)≥ | 3 | 3 | 3 | 3 |
