CUMILAG 28 (Insulation Refractories)

CUMILAG 28 insulation exhibit unique combination of chemical, mechanical stability and insulating properties. They are suitable for applications at service temperatures ranging from 1250 C to 1850 C. They can be directly exposed to flame, and combustion products.

USER INDUSTRIES

  • Ceramic, Metallurgical
  • Carbon black
  • Fertiliser
  • Iron & Steel
  • Power generation

APPLICATIONS

  • High temperature kiln hot face & backup lining
  • Back up lining
  • Primary reformer and hydrogen transfer lines back up,Secondary reformer cold face
  • Blast furnace stoves
  • High temperature air pre-heaters
 

cumilag 28 properties

 

CUMILAG28

PROPERTIES

UNIT

LimitValue

TypicalValue

Maximum Ho t  Face Temperature

oC

1540

1540

BulkDensity

gm/cc

0.95 max.

0.88

ColdCrushingStrength

Kg/cm2

21min.

25

ReheatChange(For 24hrs.)

%

-0.4max.at1510o C

-0.2at1510o C

ThermalConductivity

 

 

W/moK

 

 

At 400oCHotFaceTemp.

0.32max.

0.28

At 600oCHotFaceTemp.

0.35max.

0.30

At 800oCHotFaceTemp.

0.40max.

0.35

At 1000oCHotFaceTemp.

0.45max.

0.38

At 1200oCHotFaceTemp.

0.50max.

0.43

ChemicalAnalysis

 

 

%

 

 

Al2O3   

67.0min.

67.21

SiO2

31.35

Fe2O3   

0.65max.

0.62

RecommendedLayingMortars

 

CUMIBOND

LK65