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Low Creep High Aluminum Bricks

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High alumina brick is a kind of neutral refractory brick, which has certain resistance to acid and alkali chemical erosion. With the decrease of aluminum content in high alumina brick, acid corrosion resistance is enhanced. High-aluminum brick has the advantages of high temperature resistance, high load softening temperature, high compressive strength, low porosity, strong resistance to solution penetration, etc. It is widely used in the lining of masonry industrial furnaces and thermal equipment, such as Blast furnace, hot blast stove, blast furnace, power plant boiler, electric furnace, etc.

AVAILABLE SIZES

Technical Indicators 


Index item

CJ-DRL-155

CJ-DRL-150

CJ-DRL-145

CJ-DRL-140

CJ-DRL-135

CJ-DRL-130

CJ-DRL-127

Al2O3,%,

75

75

65

65

65

60

50

Fe2O3,%,

2.0

2.0

2.0

2.0

2.0

2.0

2.0

Density, g/cm3

2.60-2.85

2.60-2.85

2.50-2.70

2.40-2.60

2.35-2.55

2.30-2.50

2.30-2.50

0.20 MPa, Creep rate/%

50h

1550

0.8

1500

0.8

1450

0.8

1400

0.8

1350

0.8

1300

0.8

1270

0.8

Apparent porosity %,

20

21

23

24

24

24

25

Normal atmospheric temperature Compressive strength ,a/MPa,

60

60

50

45

45

45

40

Heating Permanent Line Change:    /%

1500x2h

-0.2-0.2

1500x2h

-0.2-0.2

1500x2h

-0.2-0.2

1450x2h

-0.2-0.2

1450x2h

-0.3-0.2

1450x2h

-0.3-0.2

1450x2h

-0.3-0.2


Tel: 0086-533-3190823

caojian@cj-ceramicfiber.com


 

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