Self-flow castable

      The self-flow castables are made by optimizing the PSD of aggregates and powders and with addition of high efficiency water reducing agent. It can flow and level by itself and is suitable for the installation of configurations with complicated shape and limited space. Their thermal shock resistance and mid- and high-temperature strengths can be further improved by adding appropriate amount of heat resistant steel fibers.

Product specification

Properties specification of self-flow castables for heating furnace

 

 Type

 

SR-SF-1

 

SR-SF-2

 

SR-SF-3

 

SR-SF-4

 

SR-SF-5

Chemical analysis (%) ≥ 

 

Al2O3

 

45

 

60

 

65

 

70

 

85

 Bulk density (g/cm3)   ≥

 

110℃×24h

 

2.15

 

2.25

 

2.35

 

2.45

 

2.70

 

1500℃×3h

2.10 (1250℃)

2.20 (1300℃)

2.30 (1350℃)

2.40 (1450℃)

 

2.60

Modulus of rupture Mpa

 ≥

 

110℃×24h

 

4

 

4

 

5

 

6

 

6

 

1500℃×3h

5 (1250℃)

5 (1300℃)

6 (1350℃)

6 (1450℃)

 

8

 

Compressive strength Mpa

 ≥

 

110℃×24h

 

30

 

30

 

40

 

40

 

40

 

1500℃×3h

40 (1250℃)

50 (1300℃)

50 (1350℃)

50 (1450℃)

 

50

Permanent change (%)

 

1500℃×3h

±0.5 (1250℃)

±0.5 (1300℃)

±0.5 (1350℃)

±0.5 (1450℃)

 

±0.5

Flow value   (mm)

 

170210

 

170210

 

170210

 

170210

 

170210

Service temperature (℃)

 

1300

 

1400

 

1500

 

1550

 

1600

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