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ISOTEK™ Insulating Firebricks
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ISOTEK™ Insulating Firebricks

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As specified by name, Insulating firebricks are of light weight, low thermal conductivity, excellent strength at ambient and elevated temperature. With very low levels of iron and other impurities, the bricks provide good resistance to chemical attach, can be used in tough, reducing atmosphere conditions. Every brick is ground to precise dimensions.     
 

Items

TM23

TM26

TM28

Classification Temperature (°C)

1260

1430

1540

Density (g/cm³)

0.55-0.6

0.8

0.9

Compressive Strength (MPa)

1.2

1.6

2.1

Deformation under hot load (0.07MPa) (%)

≤0.9 at 1100°C

≤0.2 at 11260°C

≤0.2 at 1320°C

Permanent linear shrinkage (%) after 24hrs

-0.5

-0.4

-0.5

Coefficient of reversible thermal expansion (%)

0.48

0.55

0.60

Chemical Analysis (%)

 

 

 

Al2O3

45

58

67

SiO2

47

38

30

Fe2O3

0.7

0.7

0.6

Thermal Conductivity  (W/m.K)

 

 

 

600°C

0.16

 

 

800°C

0.18

0.31

0.36

1000°C

0.20

0.33

0.38

1200°C

 

0.35

0.41


Applications


 Kilns for the ceramic, tunnel, shuttle
 Forge furnaces
 Carbon baking furnaces
 Atmosphere furnaces
 High temperature kiln lining
 Back up insulating of glass melting tanks
 Insulating of tin bath area for float glass
 Blast furnaces
 Chemical and petrochemical industry
 Non-ferrous metal industry

 

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