Pyrotek Valcor® G Pre-Cast Shapes

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Pyrotek Valcor® G Pre-Cast Shapes
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Applications Burner blocks Skimmer blocks Cover blocks Specialty blocks Plungers Stirrers Spouts Feeder tubes Advantages Proven performance in molten glass contact applications Smooth surface finish does not mark or streak glass Molds readily available for most components Information provided by Pyrotek.
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Physical Properties	Metric	English	Comments

Density	2.787 g/cc	0.1007 lb/in³
Open Porosity	22 %	22 %
Permeability	4.0	4.0	ft³/hr-ft²-in/lbs/in²

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00480 GPa @Temperature 1538 °C	0.696 ksi @Temperature 2800 °F
	0.00690 GPa @Temperature 1427 °C	1.00 ksi @Temperature 2601 °F
	0.0110 GPa @Temperature 1260 °C	1.60 ksi @Temperature 2300 °F
	0.0131 GPa @Temperature 24.0 °C	1.90 ksi @Temperature 75.2 °F

Thermal Properties	Metric	English	Comments
CTE, linear	8.50 µm/m-°C @Temperature 20.0 °C	4.72 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

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CPYRO154 / 1874

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