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Technical Data of 40% Alumina |
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JAY AL - 40% is 40% Alumina Brick based on calcined
bauxite of Rotary Kiln with good thermal spalling resistance, medium
porosity and good mechnical streingth. Applications includes Cement
Rotary Kilns, Reheat Furnaces, Metallurgical Furnaces, Boiler Furnaces,
Linings for general purpose usein steel plants including Tundish Lining
and Ceramic Kilns.
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Chemical Analysis |
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Alumina Al2O3 |
38.0 - 40.0 % |
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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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Titania TiO2 |
2.90 - 3.50 % |
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Calcia CaO |
1.00 - 1.50 % |
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Physical Properties |
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Pyrometric Cone Equivalent, Ortron |
Min. 32(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 Conuctivity, W/Mok at 700°C |
1.70 |
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Thermal Conuctivity, 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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