Thermal Ceramics Valcor® G

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Thermal Ceramics Valcor® G
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	The Valcor line of fired refractory shapes, manufactured by Thermal Ceramics, has a proven track record in molten glass contact applications. The shapes are engineered to meet precise customer specifications and are individually inspected. Features: Years of proven performance in molten glass contact applications Very smooth surface finish Hundreds of molds in stock Two compositions: G and G-AZ Individual part inspection Hundreds of standard molds in inventory Applications: Consumable molten glass contact refractory shapes stirrers plungers spouts feeder tubes skimmer blocks Burner blocks Information provided by Thermal Ceramics Data has not been recently verified. Please contact manufacturer for current information.
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Physical Properties	Metric	English	Comments

Bulk Density	2.868 g/cc	0.1036 lb/in³
Porosity	17 %	17 %	Apparent
Permeability	4.0	4.0	ft³/hr * ft² * in, psi
Deformation	3.6 %	3.6 %	at 25 psi; 1.5 hours at 2850°F

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00483 GPa @Temperature 1540 °C	0.700 ksi @Temperature 2800 °F
	0.00621 GPa @Temperature 1430 °C	0.900 ksi @Temperature 2600 °F
	0.0110 GPa @Temperature 1260 °C	1.60 ksi @Temperature 2300 °F
	0.0110 GPa @Temperature 23.9 °C	1.60 ksi @Temperature 75.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	8.46 µm/m-°C @Temperature 20.0 °C	4.70 µin/in-°F @Temperature 68.0 °F
Melting Point	1960 °C	3560 °F
Shrinkage	1.9 % @Temperature 1760 °C, Time 18000 sec	1.9 % @Temperature 3200 °F, Time 5.00 hour

Component Elements Properties	Metric	English	Comments
Al2O3	93 %	93 %
Alkalis	0.20 %	0.20 %
Fe2O3	0.50 %	0.50 %
SiO2	5.0 %	5.0 %
TiO2	0.70 %	0.70 %

Descriptive Properties
MgO Content	traces

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CTHERM163 / 2483

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