Home » Refractory Products » Magnesia Alumina Spinel Brick

Magnesia Alumina Spinel Brick

MgO: 82-88%

Al2O3: 6-9%

Bulk Density: 2.8-2.9g/cm3

Long service life

Environment friendly

For transition zone of cement kilns

Email Us


Magnesia alumina spinel brick is a product made of high-purity magnesia and pre-synthesized magnesia-alumina spinel as main raw materials, after reasonable grading, high-pressure molding, and high-temperature firing.



  1. Low porosity.
  2. High strength.
  3. Good thermal shock stability.
  4. Corrosion resistance.
  5. Magnesia alumina spinel brick consumes materials in transition zone and firing zone synchronously, improving the service life of rotary kiln lining.


МgО (%)≥88≥86≥84≥82
Аl2О3 (%)≥6≥9≥9≥8
SiО2 (%)
Bulk density (g/cm3)
Open porosity (%)18181920
Compressive strength, N/mm²60605045
Softening onset temperature (℃)1700170016801650
Thermal resistance10101010
Thermal conductivity, 1000℃, W/m K2.


Magnesium alumina spinel bricks are mainly used in the lining of steel nickel furnace and aluminum smelting furnace in nonferrous metal smelting furnaces, electric furnace cover, lining of steel ladle, lining of vacuum treatment device for refining outside steelmaking furnace, high temperature zone of cement calcining kiln Good refractory products for inner lining, regenerator of steelmaking open hearth furnace and checker brick of glass melting furnace.

Magnesia brick related products


There are no reviews yet.

Be the first to review “Magnesia Alumina Spinel Brick”

Your email address will not be published. Required fields are marked *


Go to Top