Bonded by pulp or brine, Magnesia Spinel Bricks are calcinated at high temperature from molding blank bricks which are shaped from certain proportion of ingredients mixed magnesia spinel powder with sintered or fusged magnesia material. During the process, spinel material is very important in produciton. Usually the dosage of spinel is 10 - 20% for the best, and also some propotion of α-Al2O3 fine powder shall be taken as additive.

  • Good resistance to erosion;
  • Fine resistance to abrasion;
  • Excellent thermal shock stability;
  • Free of chrome harming environment.

Depending on requirements from customers, we are able to custom accordingly and offer Magnesia Alumina Spinel Bricks and Magnesia Ferros Spinel Bricks.



Application Field


Magnesia Spinel Bricks are widely used in following fields:

  • Cement rotary kilns by replacing Magnesia Chrome Bricks;
  • Regenerator of glass furnace;
  • Lingings of steel ladle;
  • Slag line of high temperature furnaces;
  • Lime kiln.

Specs Sheet


   Thanks for our professional technical designers, well-trained operations and dedicate equipment, we are honored to have capacity to tailer Mag Spinel Brick as per drawings and stardard from our customers to meet requirement at each level, besides our specs as below:

Specification Sheet for Magnesia Spinel Brick

Item MASp-8012 MASp-7512 MASp-7012 MASp-6018
Chemical Composition MgO, % 80 75 70 60
Al2O3, % 12 12 12 18
 SiO2, % 1.0 1.0 1.5 1.0
Bulk Density, g/cm3, Min 2.95 2.90 2.90 2.85
Apparent Porosity, %, Max 18 18 18 18
Cold Crushing Strength, Mpa, Min 40 40 40 40
RUL, % T0.6 1650 1650 1650 1650
Thermal Shock Resistance @ 950 ℃, Air Cooled, Times 10 10 10 10
Remark  -  -  -  -


Specification Sheet for Magnesia Ferro Spinel Brick

Item MFSp-8804 MFSp-8606 MFSp-8504
Chemical Composition MgO, % 88 86 85
Fe2O3, % 3 - 5 5 - 7 3 - 5
Al2O3, % 3 - 5 3 - 5 7 - 9
SiO2, % 1.0  1.0  1.0
Bulk Density, g/cm3, Min 2.95 2.95 2.95
Apparent Porosity, %, Max 18 18 18
Cold Crushing Strength, Mpa, Min 80 80 80
RUL, % T0.6 1700 1650 1680
Thermal Shock Resistance @ 1,100 ℃, Water Cooled, Times 10 8 10
Remark - - -

 Note: Above specs are subject to adjustment without prior notice.









A safety data sheet (SDS), material safety data sheet (MSDS), or product safety data sheet (PSDS) is an important component of product stewardship, occupational safety and health, and spill-handling procedures. SDS formats can vary from source to source within a country depending on national requirements.

SDSs are a widely used system for cataloging information on chemicals, chemical compounds, and chemical mixtures. SDS information may include instructions for the safe use and potential hazards associated with a particular material or product. The SDS should be available for reference in the area where the chemicals are being stored or in use.

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