High Mechanical Intensity Firing Kiln Kiln Refractory Bricks With 48% Al2O3

Get Quotation

Contact Seller

Al2O3: 48% Bulk Density: 1.0g/cm3
Cold Crushing Strength: 4.0MPa Work Temperature: 1400C

High Alumina high temperature insulation Kiln Refractory Bricks Lightweight for Rotary Kiln


By using the products widely in insulating layers of various thermal equipments for example blast furnace, hot blast furnace, coke oven and linings where no high temperatures melt corrosion occurs.





High alumina lightweight insulating refractory brick is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.



This series of High Alumina Insulating Refractory Brick are made of selected high alumina bauxite, kaolin clay, and hollow microsphere. By shaping at high pressure and sintering at high temperature




Physical and chemical index




HG-1.2 LG-1.0 LG-0.9 LG-0.8 LG-0.7 LG-0.6 LG-0.5
Al2O3,% ≥48
Fe2O3,% ≤2.0
Bulk Density ≤ 1.2 1.0 0.9 0.8 0.7 0.6 0.5
Cold Crushing Strength ≥ 5 3.92 3.43 2.94 2.45 1.96 1.47


Thermal Conductivity ≤

0.55 0.5 0.45 0.35 0.35 0.30 0.25
Temp reheating shrinkage less than 2.0% 1400 1400 1400 1400 1350 1350




High Mechanical Intensity Firing Kiln Kiln Refractory Bricks With 48% Al2O3

Please follow and like us: