Poco Graphite Premium Graphite Glass Handling Graphite Grade GLASSMATE®-XL Graphite

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Poco Graphite Premium Graphite Glass Handling Graphite Grade GLASSMATE®-XL Graphite
Categories:	Carbon; Graphite
Material Notes:	GLASSMATE®-XL graphite is Entegris POCO strongest material, developed to provide maximum durability, reduced porosity, and improved surface quality. This graphite offers a tighter microstructure and the highest hardness in the GLASSMATE® portfolio to improve wear resistance and glass surface quality. Features: Average particle size of less than 1 micron provides premiere material strength and resistance to damage. Increased material strength resists deformation caused during rigorous manufacturing. Fine surface finish creates precision threads that meet tight tolerance process specifications. Improved wear-resistance characteristics extend product life, minimizing costly replacements and downtime. Our graphite grades are available as billets, semi-finished rods, blocks, plates, and fully machined parts. Applications: Conditions that lead to extreme wear. Pick up of heavy containers. Precision thread pick up. Productions that have longer run times. Long handling component lifetimes. Information provided by Entegris POCO Materials.
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Physical Properties	Original Value	Comments

Density	1.74 g/cc
Particle Size	<= 1.0 µm
Ash	<= 0.30 %	< 3000 ppm ash

Mechanical Properties	Original Value	Comments
Hardness, Shore D	88
Flexural Strength	15250 psi	Measured using three-point bend method.
Compressive Strength	23500 psi

Thermal Properties	Original Value	Comments
CTE, linear	8.10 µm/m-°C
Thermal Conductivity	77.0 W/m-K	Room temperature; as temperature increases, thermal conductivity decreases.
Maximum Service Temperature, Air	450 °C	Oxidation threshold; weight loss after 24 hours is about 1%

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