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	Original Value	Comments

Density	1.60 g/cc @Temperature 600 °C
	1.80 g/cc @Temperature 20.0 °C
Grain Size	<= 5000 µm

Mechanical Properties	Original Value	Comments
Modulus of Rupture	0.00400 GPa @Temperature 20.0 °C	Cold
	0.00500 GPa @Temperature 600 °C	Cold
	0.00600 GPa @Temperature 1000 °C	Cold
	0.00600 GPa @Temperature 850 °C	Cold
Compressive Strength	24.0 MPa @Temperature 20.0 °C	Cold
	37.0 MPa @Temperature 600 °C	Cold
	42.0 MPa @Temperature 1000 °C	Cold
	44.0 MPa @Temperature 850 °C	Cold
Abrasion	19.9 @Temperature 600 °C	[cm^3]
	21.8 @Temperature 20.0 °C	[cm^3]

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.600 W/m-K @Temperature 600 °C
	0.600 W/m-K @Temperature 300 °C
	0.700 W/m-K @Temperature 900 °C
Maximum Service Temperature, Air	1000 °C
Shrinkage	-0.200 % @Temperature 20.0 - 850 °C

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

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CPYRO520 / 199542

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