TIMCAL TIMREX® T44 Primary Synthetic Graphite

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TIMCAL TIMREX® T44 Primary Synthetic Graphite
Categories:	Carbon; Graphite; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	TIMREX Primary Synthetic Graphite is produced in a unique highly controlled graphitization process which assures narrow specifications and unequalled consistent quality due to: monitoring of all production and processing stages, strict final inspection, and clearly defined development processes. TIMREX Primary Synthetic Graphite shows unique properties thanks to the combination of a consistent purity, perfect crystalline structure and well defined texture. Tribological and mechanical properties: High toughness Good lubrication properties Advantages and applications: Low friction coefficient Low wear of the counterpart and low self-wear Good transfer-film formation Medium electrical conductivity Medium density of brushes and parts Suitable for pitch-bonded and resin-bonded brushes Information provided by TIMCAL
Key Words:	CAS Number 7782-42-5
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Physical Properties	Metric	English	Comments

Bulk Density	0.180 g/cc	0.00650 lb/in³	Scott
Particle Size	43 µm	43 µm	springback 20.5%, pressure of 0.477 t/cc
	37 - 52 µm	37 - 52 µm	d90, Guaranteed
	45 µm	45 µm	at a density of 1.55 g/cc, pressure of 2.5 t/cc
	57.5 µm	57.5 µm	d90, Typical
	75 µm	75 µm	springback 23%, pressure of 0.477 t/cc
	80 µm	80 µm	at a density of 1.48 g/cc, pressure of 2.5 t/cc
	145 µm	145 µm	at a density of 1.39 g/cc, pressure of 2.5 t/cc
	145 µm	145 µm	springback 24%, pressure of 0.477 t/cc
Specific Surface Area	10 m²/g	10 m²/g	BET
Ash	0.070 %	0.070 %	Typical
	<= 0.10 %	<= 0.10 %	Guaranteed

Mechanical Properties	Metric	English	Comments
Coefficient of Friction	0.30 @Temperature 850 °C, Time 10800 sec	0.30 @Temperature 1560 °F, Time 3.00 hour	Sintered Cu-C -brake pads with 10% TIMREX® Coke, Sinter density: 55% of the theoret. density

Electrical Properties	Metric	English	Comments
Electrical Resistivity	2.25 ohm-cm	2.25 ohm-cm	particle size 40 um, pressure of 2.5 t/cc
	2.50 ohm-cm	2.50 ohm-cm	particle size 70 um, pressure of 2.5 t/cc

Component Elements Properties	Metric	English	Comments
H2O, Water	0.10 %	0.10 %	Typical
	<= 0.50 %	<= 0.50 %	Guaranteed

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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CTIMCAL26 / 2668

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