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JUCOS Refractories > Shaped Refractories > Magnesite Spinel Brick, MgO-Al2O3 Spinel Brick
  • Product Name: Magnesite Spinel Brick, MgO-Al2O3 Spinel Brick

  • Product Type: Shaped Refractories

  • Adding Time: 2017-06-25

  • Send Email To Us Get Free Quote
Product Details

Magnesia spinel brick is a kind of basic refractory material which is manufactured by using magnesia and little industrial alumina oxide or bauxite as raw materials. The thermal shock resistance of magnesia alumina brick is better than that of magnesia bricks, and the refractoriness is above 1580°C, with high corrosion resistance to basic melting slag. It is mainly applied to the top of steel making open-hearth furnace and EAF, high temperature tunnel kiln, large-scale cement rotary kiln and non-ferrous metal smelting furnaces, etc. 

Physical And Chemical Indicators



Magnesite alumina spinel brick
MAJ-75MAJ-80 MAJ-84
Bulk Density (g/cm3)2.902.952.95
Cold Crushing Strength (MPa)454560
Apparent Porosity (%)191918
Thermal Shock Resistanceat 1,100℃ water cooling121520
Refractoriness under Load ℃ (0.2MPa T2)160017001750
Chemical Composition (%)MgO758084
Main Applications    - Metal Line, Free Board for General Ladle
    - Permanent Line for Ladle (Wall)
    - firing zone in rotary kiln
    - upper and lower transition zone for rotary kiln
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