Description
Magnesia carbon brick and alumina magnesia carbon brick are generally used in the working lining of large ladle. In addition to the safety lining of high alumina brick, there’s another lining of 90-110mm castable material in the form of light weight, heavy weight and self-flowing materials.
Application: ladle bottom and wall
Main physical and chemical performance index:
| Index | LMM-1 | LMM-2 | LMM-3 | LMM-4 | |
| Material | Light weight | Alumina magnesia | Mullite based self-flowing castable | Low cement steel fiber | |
| Al2O3 %≥ | 45 | — | 60 | 65 | |
| Al2O3+MgO %≥ | — | 87 | — | — | |
| Bulk density g/cm3≥ | 1.8土0.2 | 2.90 | 2.45 | 2.55 | |
| Modulus of rupture MPa≥ | 110°Cx24h | — | 6 | 6 | 5 |
| 1350°Cx3h | — | 7 | 7 | 6 | |
| Crushing strength MPa≥ | 110°Cx24h | 15 | 40 | 30 | 40 |
| 1350°Cx3h | 20 | 55 | 50 | 55 | |
| (1350°Cx3h) % Linear change after heating | 土0.6 | 土0.6 | 土1.0 | 土1.0 | |
| Construction water quantity % | 7-11 | 6-7 | 7-9 | 7-9 | |
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