65% High Alumina Refractory Brick Light Yellow Neat Appearance High Softening Point
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Parameters
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Comments
| Material: | High Alumian Bauxite | Size: | 230*114*65 Mm |
|---|---|---|---|
| Certificate: | ISO9001 CE | Al2O3: | 65% |
| Color: | Light Yellow |
65% High Alumina Refractory Brick Light Yellow Neat Appearance
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Al2O3 (%)
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≥60 | ≥70 | ≥75 | 78-80 |
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SIO2 (%)
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32 | 22 | 20 | ≥18 |
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Fe2O3 (%)
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≤1.7 | ≤2.0 | ≤1.8 | ≤1.8 |
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Na2O+K2O(%)
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<2.3 | <2.0 | <1.2 | |
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Refractoriness
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1790 | >1770 | >1790 | ≥1790 |
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refractoriness under load 0.2mpa(°C)
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1450 | >1510 | >1520 | ≥1520 |
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Porosity (%)
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22 | <22 | <21 | 20 |
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Bulk density(g/cm3)
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2.33 | 2.43-2.48 | 2.45-2.55 | 2.55 |
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Cold Cushing strength (Mpa)
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≥45 | ≥50 | ≥54 | ≥60 |
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Thermal expansion at 1000°C (%)
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≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
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Reheating shrinking change(%) 1500°CX24h
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-0.3 | -0.3 | -0.3 | -0.3 |
Features:
Resistance to High temperature, Resistance to erosion, resistance to abrasion;
Excellent compression strength;
Resistance to acid and alkali;
Excellent heat stability.
Application
The high alumina bricks are widely applied to industrial furnace, glass furnace, chemical industrial furnace, utility industry furnace lining, smelting furnace, and heat insulation ventilation wall.




