Magnesia carbon brick mainly used for steelmaking oxygen converter lining, the steel export, high power electric furnace wall hot spots, as well as the furnace refining furnace lining, Sheng steel ladle slag line position and is also used for the lining of converter, AC arc furnace, DC electric arc furnace, ladle slag line and other parts.
| item | reference index | ||||||||
| MT10A | MT10B | MT10C | MT14A | MT14B | MT14C | MT18A | MT18B | MT18C | |
| MgO,% ≥ | 80 | 78 | 76 | 76 | 74 | 74 | 72 | 70 | 70 |
| C,% ≥ | 10 | 10 | 10 | 14 | 14 | 14 | 18 | 18 | 18 |
| AP% ≤ | 4 | 5 | 6 | 4 | 5 | 6 | 3 | 4 | 5 |
| volume density g/cm3 ≥ | 2.9 | 2.85 | 2.8 | 2.9 | 2.82 | 2.77 | 2.9 | 2.82 | 2.77 |
| cold crushing strength,MPa ≥ | 40 | 35 | 30 | 40 | 35 | 25 | 40 | 35 | 25 |
| high temperature bending strength,MPa ≥1400C×30mm,Mpa | 6 | 5 | 4 | 12 | 8 | 5 | 10 | 7 | 4 |
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