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Alumina Bubble Castable
Description

Description of Alumina Bubble Castable:

Alumina bubble castables have high refractoriness under load, high strength, and good heat insulation performance. Service temperature can reach 1600℃-1700℃. It is an ideal thermal insulation material for carbon black reaction furnaces and high-temperature special lining permanent layers. It has achieved very satisfactory energy-saving effects in high-temperature and ultra-high temperature furnaces such as petrochemical industrial gasifiers, carbon black industrial reaction furnaces, metallurgical industrial induction furnaces, etc. .

Technique Data

Technique Data of Alumina Bubble Castable:

Item

Specification


Low cement bonder

Aluminum sulfate bonder

Al2O3  %

95

95

CaO  %

2.5

/

Bulk Density, g/cm3

1.6

1.5

CCS, MPa

110℃×24h

7

5


1500℃×3h

22

18

Thermal Conductivity, W/(m·K)  1000

0.65

0.76

Working Temperature, 

1600

1600


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