Sillimanite bricks
- Description
-
Silimanite bricks are made of high-quality mullite, sillimanite, andalusite, sintered alumina, composite ultrafine powder and specific admixtures, which are formed by high pressure and sintered at high temperature. It is mainly used in glass furnace regenerative chamber, lattice body, support arch and molten pool bottom. It has the characteristics of high temperature resistance, high compressive strength, thermal shock stability and high temperature creep resistance.
General Properties
Chemical Analysis Item Sillimanite bricks 65 Sillimanite bricks 60
Pouring sintered sillimanite bricks
Al2O3 ≥65% ≥60%
≥67%
Fe2O3 ≤0.8% ≤0.9%
≤0.8%
SiO2 ≤33.5 ≤36.5
≤30
Physical Properties
Item Unit Sillimanite bricks 65 Sillimanite bricks 60
Pouring sintered sillimanite bricks
Apparent Porosity % ≤15.5 ≤15
≤14
Bulk Density g/cm³ ≥2.55 ≥2.52
≥2.75
Cold Crushing Strength MPa ≥90 ≥75
≥100
Refractoriness Under load(0.2MPa,0.6%) ℃ ≥1600 ≥1600
≥1650
Keywords：
Sillimanite bricks
Glass
Refractory materials
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