Corundum Mullite Bricks

The main material of corundum mullite brick is imported plate corundum, high pure fused corundum, adopt advanced superfine powder adding technology, it is made by the mixing material, drying, molding and burned in high-temperature shuttle kiln.

The characteristics of Corundum Mullite Bricks:

1. Low bulk density, low thermal conductivity, good thermal insulation performance.
2. Refractory category allow direct contact of fire, suitable ofr various atmosphere
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely
4. Product specification: standard form, normal standard, shaped and special shaped bricks.
5. Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.

Technical Data of Corundum Mullite Bricks

Performance and application              Corundum-mullite brick
Al2O3 %           80                                     ≥86
Bulk density g/cm3 ≥2.75 ≥2.90
Cold Crushing Strength Mpa ≥60 ≥80
Refractoriness under load °C ≥1700 ≥1700
Liner Change on Reheating% ±0.2(1600°C*2h) ±0.2(1600°C*2h)
Thermal shock stability  (water-cooling)frequency 1100 °C ≥20 ≥20
Coefficient of thermal expansion


4.8-7.6 5.0-8.0
Max application temperature °C 1700
Application Used for the inner liner of the high-temperature kiln, the shed bar of kiln car, etc. Used for the inner liner of the high-temperature kiln, pusher plate of electronic magnetic material

The Application of Corundum Mullite Bricks:

1.Metallurgy industry
2.Heat treatment furnace
3.Chemical industry
4.Steel, non-ferrous smelting furnace
5.Boiler and waste incinerator
6.Coke oven
7.Blast furnace

Zhengzhou Rongsheng Kiln Refractory Co. Ltd. has more than 20 years of history in the production of refractory materials. Our company is mainly engaged in the production of shaped refractories, unshaped refractories, thermal insulation materials. Now, we have established cooperative relationships with many R&D units, and our products have been sold to Japan, Korea, New Zealand, Indonesia, South Africa, Pakistan, Nigeria, Kazakhstan, etc.


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