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Corundum Bricks

(1)Corundum Brick contain more than 90% of aluminum oxide,which is manufactured using high quality synthetic electro-fused corundum sintered corundum finely grained highly aluminous raw materials with ceramic chemical bonding.(2)Corundum brick is shipped under high pressure fire with high temperature with scientifically reasonably gradating adding good...

Item

Corundum Brick 99

Corundum Brick 90

Corundum-mullite Brick

Al2O3 %

99

90

80

SiO2 %

0.3

8.5

18.5

Fe2O3 %

0.2

0.2

0.3

Bulk Density g/cm3

3.2

3

2.9

Apparent porosity %

19

18

18

Cold compressive strength MPa

100

120

120

(0.2Mpa,0.6%) Refractoriness under load C 

1700

1700

1700

Reheating linear change rate (1600C,8h) -0.2 0.2 0.2
Thermal expansion coefficient  8.1 8.1 7.6

Corundum brick is mainly used for the key parts of the industrial furnac of steel,electronics,petrolchemical,fertilizers,non-ferrous metal etc.

Address: West Development Zone, Zhengzhou City, Henan Province
Zip code: 450007
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