Description
Magnesia carbon brick effectively utilizes the strong slag erosion resistance of magnesia and the high thermal conductivity and low expansion of carbon, and compensates the biggest disadvantage of poor spalling resistance of magnesia. It has good high temperature resistance, strong slag resistance, good thermal shock resistance and low high temperature creep rate.
Features:
1. Magnesia carbon brick has excellent slag resistance, slag penetration.
2. Magnesia carbon brick can effectively prevent spalling, with excellent spalling resistance.
3. Magnesia carbon brick has excellent thermal stability and thermal conductivity.
4. Magnesia carbon brick has excellent high temperature resistance.
5. Magnesia carbon brick has high strength, high temperature creep characteristics of low .
6. Magnesia carbon brick the excellent properties of MgO-C brick brick depends on the presence of carbon, with antioxidant .
Applications:
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.
Technique Data
Physical and chemical indicators：
| Item | Index | ||||
| MT10A | MT12A | MT14A | MT16A | MT18A | |
| MgO % | ≥80 | ≥78 | ≥76 | ≥74 | ≥72 |
| C % | ≥10 | ≥12 | ≥14 | ≥16 | ≥18 |
| Apparent porosity % | ≤4 | ≤4 | ≤3.5 | ≤3.5 | ≤3.0 |
| Bulk density g/cm3 | ≥3.02 | ≥2.97 | ≥2.95 | ≥2.92 | ≥2.89 |
| Cold Crushing Strength MPa | ≥40 | ≥40 | ≥38 | ≥35 | ≥35 |
| High temperature flexural strength MPa 1400℃×0.5h | ≥6 | ≥6 | ≥10 | ≥8 | ≥10 |
