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AC3491 Bubble Alumina Bricks

Catalog No. AC3491
Material Al2O3
Purity 98.8%
Size Customized


Bubble Alumina Bricks Description

Bubble Alumina BricksAlumina Bubble Brick contains more than 90% Al2O3 and is a lightweight refractory product mainly composed of corundum. Al2O3 and the appropriate amount of clay and bonding agent are used as raw materials, and gas blowing agents are used in the preparation stage. The product has good high-temperature structural properties and can be used in industrial kilns at 1600~1800°C.


Bubble Alumina Bricks Specifications

Classification temperature (°C) 1800°C/3270°F
Bulk Density (g/cm3) 1.65 Max 1.55
Cold Crushing Strength (kg/cm2) 100 Min 150
Thermal Conductivity (W/mK) at 350°C 0.9
Reheat shrinkage (1,700°C*8 hours, %) 0.06
Chemical Composition (%) Al2O3 98.0 Min 99.2
SiO2 0.3
Fe2O3 0.5 Max 0.2


Bubble Alumina Bricks Applications

Used as the main refractory lining for hot surfaces or as an insulation material behind other refractories in furnaces, flues, kilns and similar high-temperature industrial equipment.


Our Bubble Alumina Bricks are carefully handled during storage and transportation to preserve the quality of our product in its original condition.


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