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Magnesia Chrome Brick

The main raw materials of magnesia-chrome bricks are sintered magnesia and chromite.

Magnesium oxide: 68-80%

Bulk density: 3-3.2g/cm3

Refractoriness: 1600-1700℃

Good slag resistance

Strong corrosion resistance

high temperature volume stability

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Magnesia Chrome Brick is a refractory product with MgO and Cr2O3 as the main components, and periclase and spinel as the main mineral components.



  1. Refractoriness greater than 2000°C.
  2. The load softening temperature is generally above 1550°C.
  3. Good resistance to rapid cold and rapid heat.
  4. Good volume stability at high temperature.
  5. Good thermal shock resistance.


MgO (%)80727065
Cr2O3 (%)7101317
CaO (%)
SiO2 (%)3.4444.2
Al2O3 (%)4.56.566
Fe2O3 (%)
Apparent Porosity (%)17181818
Bulk Density (g/cm3)333.023.05
Cold Crushing Strength Mpa55555550
Refractoriness Under Load (°C)1600160016001600

Application of magnesia chrome brick

Magnesia chrome brick is mainly used in cement rotary kiln, glass kiln regenerator, steelmaking furnace lining, permanent layer of refining ladle, nonferrous metallurgical furnace, lime kiln, mixed iron furnace and refractory material high temperature kiln lining, etc.

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