Pyrotek Ceramite® SFW Refractory

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Pyrotek Ceramite® SFW Refractory
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Ceramite® SFW is a cast refractory containing white cement, and based on fused silica material. This refractory is naturally non-wetting and formulated especially for use with high silicon alloys, typically foundry alloys. Products cast from this refractory are mainly used in the industry for casting launders, ceramic filter boxes and casting table modules. The aggregates in this formulation have a maximum grain size of approximately 5 millimeters (0.20 inches) and the material supports a maximum service temperature of up to 1000°C (1832°F). Benefits: Low thermal expansion Low thermal conductivity Applications: Casting launders Ceramic filter bowls Casting table modules Information provided by Pyrotek
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Physical Properties	Metric	English	Comments

Density	1.60 g/cc @Temperature 600 °C	0.0578 lb/in³ @Temperature 1110 °F
	1.80 g/cc @Temperature 20.0 °C	0.0650 lb/in³ @Temperature 68.0 °F
Grain Size	<= 5000 µm	<= 5000 µm

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00400 GPa @Temperature 20.0 °C	0.580 ksi @Temperature 68.0 °F	Cold
	0.00500 GPa @Temperature 600 °C	0.725 ksi @Temperature 1110 °F	Cold
	0.00600 GPa @Temperature 850 °C	0.870 ksi @Temperature 1560 °F	Cold
	0.00600 GPa @Temperature 1000 °C	0.870 ksi @Temperature 1830 °F	Cold
Compressive Strength	24.0 MPa @Temperature 20.0 °C	3480 psi @Temperature 68.0 °F	Cold
	37.0 MPa @Temperature 600 °C	5370 psi @Temperature 1110 °F	Cold
	42.0 MPa @Temperature 1000 °C	6090 psi @Temperature 1830 °F	Cold
	44.0 MPa @Temperature 850 °C	6380 psi @Temperature 1560 °F	Cold
Abrasion	19.9 @Temperature 600 °C	19.9 @Temperature 1110 °F	[cm^3]
	21.8 @Temperature 20.0 °C	21.8 @Temperature 68.0 °F	[cm^3]

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.600 W/m-K @Temperature 300 °C	4.16 BTU-in/hr-ft²-°F @Temperature 572 °F
	0.600 W/m-K @Temperature 600 °C	4.16 BTU-in/hr-ft²-°F @Temperature 1110 °F
	0.700 W/m-K @Temperature 900 °C	4.86 BTU-in/hr-ft²-°F @Temperature 1650 °F
Maximum Service Temperature, Air	1000 °C	1830 °F
Shrinkage	-0.200 % @Temperature 20.0 - 850 °C	-0.200 % @Temperature 68.0 - 1560 °F

Descriptive Properties
Permanent Linear Change	0.7%		20-850°C

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CPYRO520 / 199542

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