Cold Face Insulation Bricks

Shree Dev Narayan Refractories

E-118, R. K. Colony, Bhilwara, Rajasthan - 311001, India

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Selected grades of SDNR CF Expanded Vermiculite mixed with suitable binders are casted / moulded into any shape. The shaped bricks are SDNR CF conforming to IS-2042 for cold face insulation bricks.

Advantages :

Its light weight has high porosity, low thermal conductivity, and nil shrinkage.
Does not crumble while sawing or chipping.
Transit breakages almost Nil.
Does not react with gases. Resistant to both, hot and cold thermal shocks.
It is 30 times more cooling than bricks and 45 times more effective than concrete in insulation value.
Can be used in direct contact with flame without fire bricks up to 600 deg C.
More economical than many of the available insulation bricks and comparable to calcium Silicate based products.

Uses : In furnace walls, kilns, chimneys, flues and buck stays, boilers in Thermal Power Stations, Cold Storage walls, hot gases beds in coke oven batteries of steel plants. Etc.

Specifications

Shape	Rectangular
Color	White And Off White.
Size	94.53 / 23011575 mm
Standard Available Sizes	230 x 115 x 75, 65, 50, 40, 25 mm thick., 250 x 125 x 75, 65, 50, 40, 25 mm thick.
Packing	Packed in corrugated boxes or paper bundles. Each package consisting of 10 brick.
For Use in	Industial Kiln , Industial Bhatti

Technical Specifications

Service Temperature Max.	1000 deg C
Bulk Density	850 kg. / M3 (cubic meter)
Apparent Porosity	65% to 75%
Thermal conductivity at 600 deg C min. temperature	0.30 k.Cal./M/Hr./deg C
Cold Crushing strength	15 (Kg/cm²) min.
P.L.C. at 1000 deg C for 2 Hrs Al2o3 Sio2 Fe2o3	2% to 3% 28 % min. 60 % min. 2 % max.
Size Tolerance	+_ 2% or 4 mm. whichever is greater other sizes of bricks, blocks, plates, arches, circles can be made in light, medium and heavy densities or to customers specifications.

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