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High Alumina Bricks

    • Alumina content in high Alumina brick up from 45% to 95% and service temperature up to 1,900 ℃
    • Excellent corrosion resistance to neutral slag and metal penetration resistance at high liquid temperature.
    • Improved thermal shock and corrosion resistance at high temperature.
    • High density, high mechanical strength and good volume stability at high temperature.

    • Good for Iron and Steel making operation at the area of working zone in ladle and EAF roof.
    • For reheating furnace such as anchor brick and burner block.
    • Transition and cooling zone of rotary cement kiln, lime shaft klin etc.
    • Bottom and door foundry air furnace and side wall of aluminum refining melting furnace etc.

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  • SK36

    SK38

    BTA85

    A90

    Pyrometric Cone Equivalent  Orton Cone 35 - 36 37 - 38 >38 39 - 40
    Refractoriness  °C 1,785 1,830 1,840 1,880
    Bulk Density kg/m3 2,460 - 2,480 2,740 - 2,750 2,885 - 2,920 3,010 - 3,060
    Apparent Porosity  % 18.0 - 19.0 17.0 - 18.0 17.0 - 18.0 16.0 - 17.0
    Cold Crushing Strength  kg / cm2 450 - 480 720 - 750 900 - 1,000 900 - 1,000
    Modulus of Rupture  kg / cm2 70 - 80 120 - 130 200 - 250 150 - 160
    Reheat Test. Permanent Linear Change After Heating at 1.400 ° C  % + 0.5 + 1.00  + 1.0