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Luoyang Yilong Refractory Co., Ltd.
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All our products can be produced according to client's requirements.
Refractory magnesia carbon brick for ladles and eaf
1.Application of Refractory magnesia carbon brick
1). Refractory 1: Magnesia carbon brick is used for lining and bottom of EAF, Ladle, etc.
2). Refractory 2: Magnesia calcium brick is uesd for AOD, VOD and other refining device.
3). Refractory 3: Magnesia Alumina brick is used ladle upper and lower slag line.
4). Refractory 4: Low carbon brick is used for ladle slag liine, ladle lining and bottom.
2.Physical & chemical indexes of Refractory magnesia carbon brick
Refractory 1: Magnesia carbon brick
Brand | MT-12A | MT-12B | MT-12C | MT-14A | MT-14B | MT-14C | |
Chemical Composition/%,≥ | MgO | 78 | 76 | 74 | 76 | 74 | 72 |
C | 12 | 12 | 12 | 14 | 14 | 14 | |
Apparent porosity/%,≤ | 4 | 5 | 6 | 4 | 5 | 6 | |
Bulk density,≥ g/cm3 | 2.98 | 2.96 | 2.95 | 2.98 | 2.96 | 2.95 | |
Crushing strength,≥ /Mpa | 40 | 40 | 35 | 40 | 40 | 35 | |
Hot modulus of rupture,≥ (1450°C) /Mpa | 8 | 7 | 6 | 12 | 10 | 8 | |
Refractory 2 & Refractory 3: Magnesia calcium brick & Magnesia Alumina brick
Name | Magnesia alumina brick | Magnesia calcium brick | ||||
Brand | MLT-10 | MLT-8 | MLT-6 | MG-20 | MG-30 | |
Chemical composition/%,≥ | MgO ≥ | 72 | 74 | 76 | 77-79 | 65-69 |
Al2O3 ≥ | 6 | 6 | 6 | |||
CaO ≥ | 18-20 | 28-32 | ||||
C ≥ | 8 | 8 | 8 | |||
∑(A+F+S)≤ | 3 | 3 | ||||
Apparent porosity /%,≤ | 5 | 5 | 5 | 8 | 8 | |
Bulk density g/cm3, ≥
| 3.0 | 3.0 | 3.0 | |||
Crushing strength/Mpa, ≥
| 40 | 40 | 40 | 55 | 55 | |
Refractory 4: Low carbon brick
Brand | DTMT | GYT-1 | GYT-2 | |
Name | Low carbon magnesia carbon brick | Corundum spinel brick | ||
Chemical composition/%,≥
| MgO | ≥90 | 3-6 | 3-6 |
Al2O3 | ≥90 | ≥90 | ||
C | 1-3 | 1-3 | ||
Apparent porosity/%,≤
| 5 | 12 | 12 | |
Bulk density/ g/cm3, ≥
| 3.0 | 3.2 | 3.2 | |
Crushing strength/Mpa, ≥
| 40 | 45 | 40 | |
Linear change rate(1550°C)/%
| -0.5~+1.5 | -0.5~+1.5 | ||
3.Our Factory
We are professional refractory manufacturer for 27 years.
4.Warehouse and Packing of Refractory magnesia carbon brick
Skype: viola-elong