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Corundum Bricks

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Corundum bricks are good refractory material product with a content of alumina greater than 90% and a main crystalline phase of corundum.It is devided to corundum bricks, Chrome corundum bricks, Titanium corundum bricks according to their used raw materials. There also are other kinds of corundum bricks, like sintered corundum bricks and fused corundum bricks.
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Detail

Description:

Corundum bricks are good refractory material product with a content of alumina greater than 90% and a main crystalline phase of corundum.It is devided to corundum bricks, Chrome corundum bricks, Titanium corundum bricks according to their used raw materials. There also are other kinds of corundum bricks, like sintered corundum bricks and fused corundum bricks.


Features:

Corundum bricks have good chemical stability, excellent thermal shock resistance, resistance to corrosion, erosion and spalling.


Application:

Corundum bricks are new type good refractories used for glass furnace, cement kiln, heaters molten steel ladle, metallurgical furnaces for nonferrous metals and furnaces for chemical engineering industries.


Specification:

Products

CMC

Corundum Bricks

Chrome Corundum Bricks

Titanium Corundum Bricks

Index


C90

C95

C98

CC12

TC

Al2O3 % Min

85

90

95

98

73

94

Fe2O3 % Max

0.5

0.8

0.6

0.4

1.0

0.4

Cr2O3 % Min

-

-

-

-

12

(TiO2)   1.0

Apparent Porosity

% Max

20

20

20

20

20

2

Bulk Density

g/cm3 Min

2.8

3.0

3.05

3.1

3.0

3.6

Cold Crushing Strength

   Mpa Min

40

80

80

80

50

300

Refractoriness Under Load

℃ Min

1500

1700

1700

1700

1700

1650

Reheating Linear Change

%

1550℃x2h

-

+/-0.3

+/-0.2

-

-

+/-0.2

1600℃x2h

-

-

-

+/-0.2

+/-0.2

-