CUMILITE 90

CUMILITE Mullite refractories are manufactured from high purity mullite grains. CUMILITE refractories are extremely stable in service, unlike conventional mullite refractories. They are specially meant for applications that demand good chemical and mechanical stability, strength at high temperatures and resistance to spalling, corrosion and flame impingement. They outperform other refractories in high temperature volume stability in applications such as high intensity burner, carbon black reactors and other processes operated at extremes of temperature and corrosive conditions. Mullite products based on Silimanite, Andalusite and sintered mullite are widely used in glass and steel industry applications for their excellent thermal shock properties, creep resistance and resistance to chemical attack.

PROPERTIES

PRODUCT NAMECUMILITE 90
  90% Alumina , Corrundum & fused mullite product
PROPERTIESUNITLimit ValueTypical Value
Maximum Hot Face TemperatureC18001800
Bulk Densitygm/cc2.90 min.2.95
Apparent Porosity%19.0 max.17
Cold Crushing StrengthKg/cm21000 min.1050
Modulus of RuptureKg/cm2  
At Room Temperature150.0 min.175
At  1350o C75.0 min.100
Reheat Change %  
After heating at 1450°C for 6 hrs. +/-0.1 max.
Thermal ConductivityW/m K  
At 800o C Hot Face Temperature2.9 max.2.4
At 1000o C Hot Face Temperature2.7 max.2.25
At 1200o C Hot Face Temperature2.8 max.2.3
Chemical Analysis %   
Al2O388.0 min.89
SiO211.5 max.9.5
Fe2O30.2 max.0.15
Recommended Laying MortarsCUMIBOND LA 282

Note : The above typical values shown are based on average test result on standard samples. Properties are subjected to reasonable variation based on product shape etc. and hence should be considered for general guidence only.

 

CUMILITE Mullite refractories are manufactured from high purity mullite grains. CUMILITE refractories are extremely stable in service, unlike conventional mullite refractories. They are specially meant for applications that demand good chemical and mechanical stability, strength at high temperatures and resistance to spalling, corrosion and flame impingement. They outperform other refractories in high temperature volume stability in applications such as high intensity burner, carbon black reactors and other processes operated at extremes of temperature and corrosive conditions. Mullite products based on Silimanite, Andalusite and sintered mullite are widely used in glass and steel industry applications for their excellent thermal shock properties, creep resistance and resistance to chemical attack.

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