MARSREF is a supplier of high alumina insulating bricks, also know as Insulating high alumina refractory bricks. It is a lightweight refractory material with an Al2O3 content of more than 45% and mainly composed of mullite and glass phase or corundum phase. It has a volume density of 0.4-1.35g/cm3, a porosity of 66%-73%, and the crushing strength of 1-8MPa.
Alumina Insulating brick is mainly used in the insulation layer of various high-temperature industrial furnaces in the steel industry, cement industry, glass industry, petrochemical industry, electric power industry, etc.
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Performance Characters:
|
Item/Grade |
LG-0.6 |
LG-0.8 |
LG-1.0 |
|
Al2O3； % |
≥45 |
≥45 |
≥45 |
|
Bulk density； g/cm3 |
≤0.6 |
≤0.8 |
≤1.0 |
|
Cold crushing strength； Mpa |
≥2 |
≥3 |
≥4 |
|
Thermal Conductivity (900℃±25) (W/m·k) |
≤0.30 |
≤0.35 |
≤0.45 |
Silica Insulating Brick
Clay Insulating brick
Mullite Insulating brick
Alumina Insulating brick
