Thermal Ceramics MRI FS-99V Pre-Fired Refractory Shapes

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Thermal Ceramics MRI FS-99V Pre-Fired Refractory Shapes
Categories:	Ceramic; Oxide; Silicon Oxide
Material Notes:	MRI pressed fired shapes are used in a variety of alloy melt-pour systems. The pressed manufacture process meets the tight tolerance specifications required by end users. Precise size dies and detailed product inspection provide the user with a high-quality, dimensionally accurate refractory shape. Features: Variety of available compositions in high alumina and fused silica. Extreme tight tolerance capabilities Low gas permeability to ferrous alloys Good non-wetting characteristics Excellent mechanical strength Proven performance in super alloy, investment Applications: Standard size crucibles and liners for induction melting and investment casting Tundish nozzles - meet user demands on pour stream and pour speeds Gas atomized nozzles - for custom-designed atomizing powder metal systems 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	1.811 g/cc	0.06543 lb/in³
Porosity	12 %	12 %	Apparent

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00793 GPa	1.15 ksi

Thermal Properties	Metric	English	Comments
CTE, linear	0.360 µm/m-°C @Temperature 20.0 °C	0.200 µin/in-°F @Temperature 68.0 °F
Thermal Conductivity	2.31 W/m-K @Temperature 1090 °C	16.0 BTU-in/hr-ft²-°F @Temperature 2000 °F	ASTM C417
Maximum Service Temperature, Air	1540 °C	2800 °F

Component Elements Properties	Metric	English	Comments
Al2O3	0.70 %	0.70 %
Alkalis	0.10 %	0.10 %
CaO+MgO	0.10 %	0.10 %
Fe2O3	0.10 %	0.10 %
SiO2	99 %	99 %

Descriptive Properties
TiO2 content	traces

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