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Magnesia Bricks

Magnesia refractory brick can be classified into different types according to the content of chemicals in it, such as magnesium bricks, magnesium chromium bricks, magnesium carbon bricks, and so on. Although the content in them is different, they all have high refractoriness, slag erosion resistance, and thermal shock stability. They are alkaline refractories.

Magnesia Bricks

Types of Magnesia Refractory Bricks for Sale

Magnesia Chrome Brick

Magnesia Chrome Brick

Magnesite chrome brick is a good refractory material. It consists of magnesium oxide and chromium oxide, which have good refractoriness ...
Magnesia Carbon Refractory Brick

Magnesia Carbon Refractory Brick

Magnesia carbon refraqctory bricks are made of high-pure magnesium sand powder, carbon materials (including graphite) and caramel asphalt or resin ...
Magnesia Iron Spinel Brick

Magnesia Iron Spinel Brick

Magnesia Iron Spinel Brick 1. High Working Temperature; 2. Good Thermal Shock Resistance; 3. High Compressive Strengthd; 4. Strong Resistance ...
Magnesia Alumina Spinel Brick

Magnesia Alumina Spinel Brick

Magnesia Alumina Spinel Brick 1. Good Thermal Stability; 2. Strong Resistance to Erosion; 3. Lower Thermal Conductivity; 4. Good Resistance ...

Parameters of Magnesite Refractory Brick

ItemM-98M-97AM-97BM-95M-91
MgO, %97.597.0 96.595.0 91.0
SiO2, %1.00 1.20 1.50 2.00 /
CaO, %///2.00 3.00
Apparent Porosity, %1616181618
Bulk Density, g/cm³3.00 3.00 2.952.90
Cold Crushing Strength, MPa60606060
0.2MPa Refractoriness Under Load, ℃1700170016501560
Permanent Linear Change, %1650℃*2h
-0.2~0
1650℃*2h
-0.3~0
1600℃*2h
-0.5~0

Advantages of Magnesium Refractory Brick

Magnesium Refractory Brick

High Refractoriness

Magnesium bricks have high refractoriness. The refractoriness of magnesia chrome bricks could be up to 2000℃. They could be used for the lining of different industrial equipment because of their good thermal conductivity. Among them, magnesia chrome brick has better resistance to acute cooling and heat. The volume is more stable at high temperature than other magnesite refractory bricks.

Strong Resistance to Alkaline Slag

Magnesia brick is an alkaline refractory material. So magnesia brick has strong resistance to alkaline slag. It can not resist the erosion of acid slag. However, magnesia chrome bricks can also resist some acidic substances. Using magnesia brick as the lining of equipment could extend the service time and keep the stability.

Good Resistance to Thermal Shock

Mmagnesium brick has good resistance to thermal shock. However, its resistance could be improved by adding different substances. As a compound refractory material, magnesia carbon brick has the strong resistance to alkaline slag and high thermal conductivity. Magnesia chrome bricks for cement kilns are more prone to produce kiln skin. The resulting kiln skin compensates for the poor resistance to thermal shock.

Magnesia Carbon Refractory Brick

Usages of Magnesium Oxide Brick

Magnesia refractory brick is mainly used for steelmaking alkaline flat furnaces, electric furnace bottom and wall, the permanent lining of oxygen converters, non-ferrous metal smelting furnaces, high-temperature tunnel kilns, heating furnace bottom and wall, glass kiln heat storage chamber lattice brick, and so on.

For the magnesium refractory brick mentioned above, Kerui will make different adjustments according to the actual use conditions and environment. The use of special-shaped brick masonry in complex parts ensures the economic benefits and later maintenance of enterprises in use. If necessary, we can provide a one-stop service to avoid problems that may be encountered during construction. Please contact us at any time.

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