Sillimanite Bricks

Sillimanite bricks have sillimanite mineral as the main material that is fired under the high temperature or poured with mud mix. Sillimanite brick has many good features such as high strength and wear resistance so that can be used as lining building materials for all kinds of furnaces or kilns.

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Description for Sillimanite Bricks

Sillimanite bricks are a kind of high quality refractory brick with high refractoriness of 1770~1830℃ and high refractoriness under load of 1500~1650℃, whose physical and chemical property is better than high alumina bricks. Sillimanite transforms into mullite and free silicon dioxide after high temperature firing. Sillimanite refractory bricks generally adopt manufacturing process of high temperature firing and mud mix pouring process.

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Performance of Sillimanite Bricks

  • High temperature and wear resistance
  • High mechanical strength
  • Good thermal insulation
  • Strong resistance to acid slag erosion
  • High refractoriness under load
  • Good thermal stability
  • Resistance to spalling
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Application of Sillimanite Bricks

Sillimanite bricks are a kind of good lining building material for furnace or kiln, which are mainly used for furnace lining, furnace throat, Iron notch and tuyere of blast furnace, and throat molding of glass furnace.

Sillimanite refractory bricks are wildly used in the glass industry, cement industry, steel and non-ferrous metals industry and incineration with good resistance to thermal shocks property.

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Technical Index of Sillimanite Bricks

Item/Index Unit Sillimanite Bricks
AK60 AK60C S65
Raw Material Andalusite Andalusite Sillimanite
Fe2O3 % 1.0 ≤1.0 0.8
Al2O3 % 60 60 65
Thermal Shock Resistance 120 120 12
Apparent Porosity % 13 15 13
Cold Crushing Strength Mpa 100 100 100
Bulk Density g/cm3 2.6 2.6 2.65
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Rongsheng Refractory as a professional sillimanite bricks manufacturer provides customers with high quality sillimanite bricks at low price for furnace or kiln application. Special customization for shape and size can be made according to customers’ special requirement for sillimanite bricks application.

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