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Castables
 ORAHEAT
High Purity Dense Castables
High Purity Dense Castables are refractory castables suitable for high temperature applications. These castables are available in various grades suitable for a specific range of operational conditions.These refractory castables are hydraulic setting and can be casted or moulded to any shape and can also modified for gunning of furnace linings.

Brands Oraheat
A		 Oraheat
K		 Oraheat K (Spl) Oraheat
C		 Oraheat C (Spl) Oraheat C
Super
Chemical Analysis
Al2O 3 % min 90 60 60 50 50 50
Fe2O3 max 0.8 1.0 1.0 1.3 1.3 1.7
Physical Properties
Services Temp. ºC 1750 1600 1600 1500 1500 1500
Bulk Density gms/cc 2.80 2.20 2.1 2.1 2.1 2.25
Water required for casting % 7.5 - 8.5 9.5 - 10.5 9.5 - 10.5 9.5 - 10.5 9.5 - 10.5 10 - 11
Grain Size,mm 5 5 5 5 5 5
CCS, Kgs / cm2
at 110 ºC / 24hrs. 640 380 480 380 450 550
at 800 ºC / 3 hrs. 430 280 350 280 360 400
at 1100 ºC / 3 hrs. 330 230 250 220 260 350
at 1500 ºC / 3 hrs. - - - 500 550 500
at 1550 ºC / 3 hrs. 650 520 550 - - -
Thermal Properties
PLC,%
after heating at 800 ºC / 3 hrs -0.06 -0.12 -0.12 -0.06 -0.06 0 - 0.6
after heating at 1000 ºC / 3 hrs -0.12 -0.19 -0.19 -0.12 0 - 0.12 -0.18
Thermal conductivity,Kcal/mhr º/C
at 400 ºC HF 1.15 0.81 0.83 0.75 0.78 0.81
at 600 ºC HF 1.2 0.83 0.85 0.78 0.81 0.83
at 800 ºC HF 1.26 0.86 0.88 0.81 0.84 0.86
 
Packaging:50 Kgs Bags
Storage Life:9 Months water proof weather conditions.
The above data represents typical average properties and does not constitute a specification.
 
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