Heat Insulation Fire Clay Insulating Brick Fireclay Insulation Brick For Tunnel Kiln

1.Lower thermal conductivity
2.Lower bulk density
3.Light weight character
4.Lower creep rate in high temp
5.Good thermal shock resistance performance
6.Higher temperate resistant with good refractoriness

Product Description

Light weight clay insulation brick is made of local top grade fireclay materials under the high temperature according to the lasted national standard, which possesses even bulk density, high strength, low thermal conductivity and low impurity.


It is widely used as a primary hot face refractory lining or as back-up insulation behind other refractory in furnace(such as carbon furnace, cracking furnace, heating furnace for oil refining, roller kiln, tunnel kiln.), flues, refining vessels, heaters, regenerators and similar high temperature industrial equipment.


Item Fire clay   insulating bricks
Al2O3(%) 25-28%
SiO2(%) 65-70%
Fe2O3(%) ≤2.5
Bulk   density ( g/cm3 ) 0.9-1.0
Working Temperature(°C) 900-1000C
Refractoriness(°C) 1100C
Cold   Crushing Strength (Mpa) 3 Mpa