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  • Product Name: Light Insulation refractory Ca...
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Light Weight Unshaped Refractory Insulation Corundum-Mullite Castables

Detailed Product Description

Classification:

SK32; SK34; SK36; SK38

Product Name:

corundum-mullite insulation castables

Grain Size:

0-6mm

Feature:

Thermal Insulation

Usage:

Linings, Furnaces And Kilns etc.

Refractoriness:

 1000º C~1450º C

 

Specifications:

Item

Light corundum porzite castable

Light floating bead ceramisite castable

Light soda proof castable

Super light castable

Bulk density g/cm3

1.0

1.3

1.2

1.0

0.8

1.5

1.7

0.45

0.55

Refractoriness under loading 0.2Mpa, ℃

1500

1450

1200

1100

1000

1200

1300

950

1000

Cold crushing strength Mpa 110 ℃

7.5

8

7.8

6.5

7.2

35

40

5.5

6.0

Cold crushing strength Mpa 1000*3h

30

30

12.2

11.3

12

30

35

6.5

7.8

Heat conductivity coefficient 350℃

0.35

0.35

0.31

0.26

0.26

0.26

0.35

0.26

0.25

Coefficient thermal expansion%1000℃

0.55

0.65

0.86

0.75

0.60

0.40

0.40

0.20

0.30

Max working temperature ℃

1450

1500

1350

1300

1250

1300

1300

980

1100

AL2O3 %

≥70

≥65

≥30

≥35

≥30

≥35

≥40

≥35

≥40

SiO2 %

≤22

≤25

≤45

≤45

≤45

≤50

≤45

≤55

≤40

Application:

The light weight castables have low density,low thermal conductivity,high strength,good acid resistance and alkali resistance.They are suitable for middle and low temperature furnace linings,Ceiling and mobile cover.Light weight corundum-mullite castables can be mainly used at heating furnaces in metallurgical.

castable refractory cement

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