High-Aluminum Refractory Brick

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High alumina brick refers to fire brick containing Al2O3 more than 48%, which is made of high grade bauxite through high temperature calcinations. High alumina brick is a kind of neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion. It has characteristic of high refractoriness under load, which decide high alumina brick is a n ideal material for various kinds of industrial furnace. It is widely used in building lining of hot-blast stove, blast furnace, coke oven, rotary kilns of cement and so on.

ItemFireclay brickHigh Alumina Brick
Al2O3  (%)  ≥384248556575
Refractoriness (oC) ≥167017301750177017901790
Refractoriness under Load, oC,0.2MPa ≥125013001420147015001520
Linear Change(%), oC×2h135013501450150015001500
Porosity (%)≤262622222323
Cold Crushing Strength, MPa≥152039.244.14953.9


  • Strong volume stability in high temperatures

  • Good thermal shock resistance, wear resistance and erosion-resistance


  • Transitional zone and preheating zone of cement rotary kilnand other thermotechnical equipment which requires thermal shock resistance.

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