Light weight castables with micro-pored mullite as aggregates

      With good insulating property, high service temperature and high strength, the castables are made of micro-pored light weight mullite as aggregates, suitable for insulating layers subjecting to high service temperatures of various industrial furnaces.

产品规格

Properties specification of light weightcastables with micro-pored mullite as aggregates

 

 Type

 

SR-MLW-1.3

 

SR-MLW-1.5

 

SR-MLW-1.8

 

SR-MLW-2.0

Chemical analysis (%) ≥ 

 

Al2O3

 

40

 

45

 

45

 

50

Bulk density (g/cm3)

 

110℃×24h

 

1.3±0.1

 

1.5±0.1

 

1.8±0.1

 

2.0±0.1

Compressive strength Mpa ≥

 

110℃×24h

 

5

 

6

 

7

 

8

 

1350℃×3h

 

10

 

15

 

15

 

15

Permanent change(%)

 

1350℃×3h

 

-1.00

 

-1.00

 

±0.5

 

±0.5

Thermal conductivity

W/ (m·K) ≤

 

700℃

 

0.40

 

0.65

 

0.70

 

0.75

 

1000℃

 

0.45

 

0.75

 

0.85

 

0.90

Main raw material

        Micro-pored mullite light weight aggregate

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