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Mullite Brick for Kiln Car Base

This special shape brick is mainly made of mullite and used in kiln car bases. Characterized as lower thermal expansion and high thermal shock resistance.

It is a replacement of the normal insulating bricks that do not need mortar for brickwork. Two bricks can be locked together which is easy to operate and prolongs the service life of the kiln car.

1. High-temperature resistance

2. Good thermal shock resistance

3. Lower thermal conductivity

4. Good corrosion resistance

5. No need mortar to brickwork

Mainly used for kiln car bases in refractories.





Kiln car bases


230x114x75/65mm or customized



ItemsTypical Value
Chemical CompositionAl2O3 39%
SiO2 49%
MgO 8.0%
Bulk Density1.3-1.6 g/cm3
Apparent Porosity0.3
Modulus of Rupture@ 20℃ 11 MPa
Modulus of Rupture@ 1250℃10 MPa
Coefficient of Thermal Expansion @ 20℃-1000℃2.2 x10-6K-1
Specific Heat@20℃ 1.0 Kj/Kg.K
Thermal Shock Resistance✮✮✮✮✮
Max.Service Temperature1260℃