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Technical Data of 50% Alumina |
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JAY AL - 50% is 50% Alumina Brick based on calcined bauxite of Rotary
Kiln with good thermal spalling resistance, low porosity and excellent
mechanical strength, Applications includes Cement Rotary Kilns, Reheat
Furnaces, Metallurgical Furnaces, Boiler Furnaces, Rosting Kilns,
Linings for general purpose use in steel plants including Tundish Lining
and Ceramic Kilns.
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Chemical Analysis |
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Alumina Al2O3 |
48.0 - 53.0 % |
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Silica SiO2 |
38.0 - 42.0 % |
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Ferric - Oxide Fe2O3 |
2.50 - 3.10 % |
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Titanium TiO2 |
2.90 - 3.50 % |
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Calcia Ca O |
1.00 - 1.50 % |
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Physical Properties |
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Pyrometric Cone Equivalent, Orton |
Min. 33(1743°C) |
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Reheat change - at 1400°C
- 2Hrs, |
Max. (+/-)0.5% |
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Refractories under Load -
ta Value |
Min. 1400°C |
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Apparent Porosity, |
17.0 - 20.0% |
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Bulk Density, gm/cm3 |
2.30 - 2.50 |
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Cold Crushing, Strength, kg/cm² |
400 - 600 |
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Thermal Conductivity, W/Mok at 700°C |
1.70 |
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Thermal Conductivity, W/Mok at 900°C |
1.60 |
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IMPORTANT NOTE :-
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| THE ABOVE TEST DATA are based on average results of Control tests on dry pressed
standard size bricks and are subject to normal variation on individual tests, hence
these results should not be regarded as absolute limits. |
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