Poco Graphite Premium Graphite Glass Forming Graphite GF-LT Graphite

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Poco Graphite Premium Graphite Glass Forming Graphite GF-LT Graphite
Categories:	Carbon; Graphite
Material Notes:	GLASSMATE® materials are produced using a proprietary process that enhances material properties, surpassing that of traditional graphites. The properties of these grades have been developed to optimally match the smart glass the molds are being used for. GF-LT graphite offers the same attributes as GLASSMATE® GF plus improved wear and erosion resistance. The higher hardness of this material provides superior polishing capabilities to a very high-gloss surface finish. Features: World class microstructure. Higher level of interconnected porosity. Tighter correlation between particle and pore. Improved purity levels. Isotropic mechanical properties. Increased machining capabilities. Higher physical strength. Information provided by Entegris POCO Materials.
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Physical Properties	Original Value	Comments

Density	1.77 g/cc
Particle Size	<= 3.0 µm
Pore Size	0.800 microns
Ash	<= 0.30 %	< 3000 ppm ash

Mechanical Properties	Original Value	Comments
Hardness, Shore D	96
Flexural Strength	14150 psi	Measured using three-point bend method.
Compressive Strength	22500 psi

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00245 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	8.50 µm/m-°C
Thermal Conductivity	60.0 W/m-K	Room temperature; as temperature increases, thermal conductivity decreases.
Maximum Service Temperature, Air	470 °C	Oxidation threshold; weight loss after 24 hours is about 1%

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CPOCO402 / 268787

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