CUMILAG 28

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

DESCRIPTION

CUMILAG 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.

MAIN PROPERTIES

CUMILAG 28

Physical PropertiesUNITLimit ValueTypical Value
Maximum Hot Face Temperature°C15401540
Bulk Densitygm/cc0.95 max.0.88
Cold Crushing StrengthKg/cm221 min.25
Reheat Change (For 24 hrs.)%–0.4max.at1510°C-0.2at1510°C
Thermal Conductivity
At 400 C Hot Face Temp.0.32 max.0.28
At 600 C Hot Face Temp.W/m K0.35 max.0.30
At 800 C Hot Face Temp.0.40 max.0.35
At 1000 C Hot Face Temp.0.45 max.0.38
At 1200 C Hot Face Temp.0.50 max.0.43
Chemical Analysis
Al2O367.0 min.67.21
SiO2%31.35
Fe2O3Fe2O30.65 max.0.62
Recommended Laying MortarsCUMIBOND LK 65

AVAILABILITY & PACKAGING

 CUMILAG 23, 25, 26 : Calcined clay and Calcined Alumina based product