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HIGH ALUMINA BRICKS
JAINCO’s High Alumina Bricks are the products made from pre-determined and different fractions of refractory grade low ferric Calcined bauxite, plastic fire clays and non-plastic clays of high purity. The different fractions of these raw materials are mixed in counter current mixers for fully homogeneous mixing. The mixture obtained hence, is then pressed in high capacity presses to give the desired shape and size. These pressed shapes are fired in oil fired tunnel kilns at high temperatures of 1450 0C. 
Special Characteristics:
• Low ferric as iron contents are below 2.5 %.
• Neutral in chemical nature.
• Highly resistant to thermal shocks.
• Eliminates carbon deposits.
• Prevents brick failure at high temperatures.
• Increases life of brick lining to great extent.
• Withstand high temperature upto 1450 0C .
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PHYSICAL PROPERTIES
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Recommended Service Temperature
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14500 C
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Bulk Density
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2.3 kg/cm2
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Max. Grain Size
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5.0 mm
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Cold Crushing Strength
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225 kg/cm2
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Refractoriness (Orton Cone)
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31
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Alumina Contents
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60%
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Iron Contents
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5.0%
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Initial Setting Time (Minimum)
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30 Minutes
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Final Setting Time (Maximum)
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600 Minutes
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