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.