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REFRALITE

Insulating Castables (Medium Purity)

Refralite are a range of insulating castables to conserve heat in furnaces. They are light but strong and have low conductivity, serve as either hot face or back up insulating refractory lining.

These castables are produced in density range of 400 to 1600 kg/m3. They are available mainly in two different grades – medium purity and high purity. The high purity (Low Iron) variety is suitable for reducing environments.


BRANDS Refralite - 4 Refralite - 7 Refralite - 9 Refralite - 11 Refralite - 13 Refralite - 15
Chemical Analysis
Al2O3% Min. 30 33 33 34 39 39
Fe2O3% Max. 11 8.5 6 3.5 3.5 3.2
Physical Properties
Service Temp. ˚C 1000 1100 1100 1300 1350 1350
Bulk Density gms/cc 0.55 0.85 1.00 1.25 1.45 1.60
Water required for casting% 80 - 100 60 - 65 38 - 43 29 - 34 26 - 31 23 - 28
Grain Size, mm 6 6 6 6 6 6
             
CCS Kgs/cm2            
At 110 ˚C/24 hrs. 4 12 15 35 50 90
At 800 ˚C/3 hrs. 2 4 6 25 30 60
At 1100 ˚C/3 hrs. - 6 - 25 30 60
At 1300 ˚C/3 hrs.       40 50 70
Thermal Properties
PLC% @ 800˚C/3 hrs. + 0.4 + 0.8 + 0.6 + 0.3 + 0.2 + 0.2
Heating at 1000˚C/3 hrs. + 0.6 + 1.20        
Heating at 1200˚C/3 hrs.     + 1.0      
Heating at 1300˚C/3 hrs.       + 1.0 + 0.8 + 1.0
             
Thermal Conductivity Kcal/m/hr/˚C            
At 300 ˚C HF 0.07 0.15 0.24 0.27 0.30 0.39
At 500 ˚C HF 0.09 0.17 0.26 0.30 0.32 0.42
At 800 ˚C HF 0.12 0.19 0.28 0.32 0.35 0.45
   
Storage Life: 12 months. Packaging: 25 Kgs. Bag

REFRALITE

Insulating Castables (High Purity)

Refralite are a range of insulating castables to conserve heat in furnaces. They are light but strong and have low conductivity, senve as either hot face or back up insulating refractory lining.

These castables are produced in density range of 400 to 1600 kg/m3. They are available mainly in two different grades medium purity and high purity. The high purity (Low Iron) variety is suitable for reducing environments.

BRANDS Refralite - 9HS Refralite - HT Refralite - 11Li Refralite - 13Li Refralite - 15Li Refralite - 11 Liz
Chemical Analysis
Al2O3% Min. 41 63 43 44 45 46
Fe2O3% Max. 3 1.5 1.5 1.5 1.5 1.2
Physical Properties
Service Temp. ˚C 1200 1500 1350 1400 1400 1300
Bulk Density gms/cc 1.00 1.55 1.25 1.45 1.60 1.00
Water required for casting% 38 - 44 25 - 30 30 - 35 27 - 32 23 - 28 40 -46
Grain Size, mm 6 6 6 6 6 6
 
CCS Kgs/cm2            
At 110 ˚C/24 hrs. 20 80 45 80 130 15
At 800 ˚C/3 hrs. 8 40 30 40 75 10
At 1100 ˚C/3 hrs. - 40 40 40 75 8
At 1300 ˚C/3 hrs. - 50 50 50 90 15
Thermal Properties
PLC% @ 800˚C/3 hrs. + 0.6 + 0.5 + 0.2 + 0.2 + 0.2 + 1.0
Heating at 1000˚C/3 hrs.
Heating at 1200˚C/3 hrs.
Heating at 1300˚C/3 hrs.
+ 1.0 + 1.5 + 1.0 + 0.80 + 1.0 + 1.5
Thermal Conductivity Kcal/m/hr/˚C
At 300 ˚C HF 0.24 0.37 0.30 0.35 0.38 0.19
At 500 ˚C HF 0.26 0.41 0.32 0.38 0.42 0.21
At 800 ˚C HF 0.29 0.43 0.36 0.41 0.44 0.23
   
Storage Life: 12 months. Packaging: 25 Kgs. Bag

 

* Data represent typical average properties and do not constitute a specification.