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High alumina insulating refractory brick

Product Description

Our high-alumina insulating firebricks are designed for high-temperature applications (up to 1800°C), offering exceptional thermal insulation, low thermal conductivity, and outstanding resistance to thermal shock. Ideal for:
✔ Industrial furnaces & kilns
✔ Steel & foundry linings
✔ Petrochemical reactors
✔ Glass & ceramic manufacturing

Item

Data

LG-1.0 LG-0.9 LG-0.8 LG-0.7 LG-0.6 LG-0.5 LG-0.4
Chemical components % Al2O3 48
Fe2O3 2
Bulk density after burn(g/cm3)

 

1 0.9 0.8 0.7 0.6 0.5 0.4
Cold compressive strength ≥MPa 3.92 3.43 2.95 2.45 1.96 1.47 0.78
Linear change on reheating not over 2% test temperature ℃*12h

 

1400 1400 1400 1350 1350 1250 1250
Thermal conductivity 0.5 0.45 0.35 0.35 0.3 0.25 0.2