Conventional light weight castables in Al2O3-SiO2 system

      The castables are made of porous aggregates in Al2O3-SiO2 system and cenospheres as light weight raw materials, with optimized particle size distribution. The placement is carried out by casting. They are characterized by good insulation, broad application range, high strength and good workability, and can be widely used as insulating layers of various industrial furnaces.

产品规格

Properties specification of conventional lightweight castables in Al2O3-SiO2 system

 

 Type

 

SR-LW-0.5

 

SR-LW-0.8

 

SR-LW-1.0

 

SR-LW-1.3

 

SR-LW-1.5

 

SR-LW-1.8

 

SR-LW-2.0

Chemical analysis (%) ≥ 

 

Al2O3

 

38

 

40

 

40

 

40

 

45

 

45

 

45

Bulk density (g/cm3)

 

110℃×24h

 

0.5±0.1

 

0.8±0.1

 

1.0±0.1

 

1.3±0.1

 

1.5±0.1

 

1.8±0.1

 

2.0±0.1

 Compressive strength Mpa ≥

 

110℃×24h

 

0.8

 

1.5

 

2

 

3

 

4

 

5

 

6

 

1000℃×3h

 

1

 

2

 

3

 

4

 

 

 

 

1300℃×3h

 

 

 

 

 

10

 

15

 

20

Permanent change (%)

 

1000℃×3h

 

-1.00

 

-1.00

 

-1.00

 

-0.50

-0.50 (1300℃)

-0.50 (1300℃)

-0.5~0 (1300℃)

      Thermal conductivity 

 Main raw material

Porous aggregates in Al2O3-SiO2 system and cenospheres

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