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Magnesia Carbon Bricks

Magnesia Carbon brick is resin-bonded brick made from dead-burned or fused magnesia and graphite. Graphite features in good thermal conductivity and excellent slag impregnation resistance, so Graphite is added into magnesia raw material to make composite magnesia carbon bricks. Anti-oxidant is added if required. Magnesia carbon bricks don’t need high temperature sintering, so compared with traditional fired magnesia dolomite bricks, fuel consumption is saved at least 80%. Magnesia Carbon brick has good performance in thermal resistance, corrosion resistance and spalling resistance. Widely used in converters, EAFs, ladles and refining furnaces.


Magnesia Carbon bricks are very mature product in our area. As our area has 1/4 world storage of best quality Magnesia ore, we can provide as good quality as European Mg-C bricks with competitive prices. We also provide basic refractory lining solution for CONVERTER, EAF, LF, LADLE, etc. these industrial furnaces.

Technical Data of Magnesia Carbon Bricks

Items MC8 MC10 MC12 MC14 MC18
Apparent porosity% ≤ 5.0 4.0 4.0 3.0 3.0
Bulk density g/cm3 ≥ 3.00 3.00 2.98 2.95 2.92
Cold  Crushing Strength  MPa≥ 50 40 40 35 35
Chemical
composition%
MgO ≥ 84 82 76 76 72
C ≥ 8 10 12 14 18
Application General use Corrosion Resistance Extra Corrosion Resistance

Magnesia Carbon Bricks Applications

Magnesia carbon bricks are widely used in converters, and their performance is very good, unit refractory consumption is significantly reduced. Besides, MgO-C bricks are also widely used in high power electric furnace wall hot point, secondary refining furnace inner lining, steel ladle slag line and so on. When magnesia carbon bricks are applied in steel ladles, they should not contact with SiO2 containing refractory, or magnesia carbon bricks will have larger molten erosion.

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