Skamol Group VERMICAST 116-25 Insulating Castable

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Skamol Group VERMICAST 116-25 Insulating Castable
Categories:	Ceramic; Oxide
Material Notes:	SKAMOL insulating castables have the following characteristics: Max. service temperature: Up to 1100°C (2102°F) Back-up insulation or hot-face uses For casting and gunning Products are based on fired Moler aggregates, refractory materials, or exfoliated vermiculite Effective insulation Quick and economical installation Used as monolithic heat insulation in a wide range of industrial kilns and furnaces, boilers, chimneys, and flues The Vermicast grades are favored as infill in aluminum reduction cell cathodes due to their non-wetting capacity to molten metal and good bath resistance. Information provided by Skamol.
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Physical Properties	Metric	English	Comments

Bulk Density	0.208 g/cc	0.00752 lb/in³	As Supplied
	0.304 g/cc	0.0110 lb/in³	Defined by casting method, +/- 50kg (110 lbs)
Loss On Ignition	6.0 % @Temperature 1025 °C	6.0 % @Temperature 1877 °F
Porosity	89 %	89 %

Mechanical Properties	Metric	English	Comments
Compressive Strength	0.300 MPa	43.5 psi	Dried at 110°C (230°F)

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.130 W/m-K @Temperature 200 °C	0.902 BTU-in/hr-ft²-°F @Temperature 392 °F	Mean temp.; ASTM C-201 supplemented by ASTM C-182
	0.150 W/m-K @Temperature 400 °C	1.04 BTU-in/hr-ft²-°F @Temperature 752 °F	ASTM C-201 supplemented by ASTM C-182
	0.180 W/m-K @Temperature 600 °C	1.25 BTU-in/hr-ft²-°F @Temperature 1110 °F	ASTM C-201 supplemented by ASTM C-182
Maximum Service Temperature, Air	1050 °C	1920 °F
Shrinkage	1.5 % @Time 43200 sec	1.5 % @Time 12.0 hour	Linear Reheat Shrinkage, 12h at 100°C (180°F) below max. service temp.

Component Elements Properties	Metric	English	Comments
Al2O3 + TiO2	16 %	16 %
CaO	22 %	22 %
Fe2O3	7.0 %	7.0 %
K2O+Na2O	4.5 %	4.5 %
MgO	10 %	10 %
SiO2	34 %	34 %

Descriptive Properties
Pyrometric Cone Equivalent	1310°C		ASTM C24-89, ORTON cones

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CSKAM030 / 2181

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