TIMCAL TIMREX® KS15 Primary Synthetic Graphite

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TIMCAL TIMREX® KS15 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: Medium toughness Good lubrication properties Advantages and applications: Low friction coefficient Low wear of the counterpart Good transfer-film formation High electrical conductivity Suitable for pitch-bonded and resin-bonded brushes Special alloys (Al, Mg, Ti)Hard metals (WC, TiC, Mixed Carbides) Fe-sintered engineering parts Fe-self lubricating engineering parts Fe-friction parts Copper/bronze bearings Copper friction parts copper clutch facings Information provided by TIMCAL
Key Words:	CAS Number 7782-42-5
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Physical Properties	Metric	English	Comments

Bulk Density	0.100 g/cc	0.00361 lb/in³	Scott, Typical
Particle Size	5.0 µm	5.0 µm	at a density of 1.81 g/cc, pressure 2.5 t/cc
	8.0 µm	8.0 µm	d50
	13 µm	13 µm	at a density of 1.90 g/cc, pressure 2.5 t/cc
	14.2 - 20 µm	14.2 - 20 µm	d90, Guaranteed
	17.2 µm	17.2 µm	d90
	43 µm	43 µm	Springback 20.5%, pressure 0.477 t/cc
	45 µm	45 µm	at a density of 1.85 g/cc, pressure 2.5 t/cc
	75 µm	75 µm	at a density of 1.73 g/cc, pressure 2.5 t/cc
	75 µm	75 µm	Springback 20.5%, pressure 0.477 t/cc
	145 µm	145 µm	Springback 20.5%, pressure 0.477 t/cc
Specific Surface Area	20 m²/g	20 m²/g	BET
Ash	0.050 %	0.050 %	Typical
	<= 0.10 %	<= 0.10 %	Guaranteed

Mechanical Properties	Metric	English	Comments
Coefficient of Friction	0.12 @Temperature 850 °C, Time 10800 sec	0.12 @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	1.55 ohm-cm	1.55 ohm-cm	particle size 80 um, pressure 2.5 t/cc
	1.60 ohm-cm	1.60 ohm-cm	particle size 42 um, pressure 2.5 t/cc
	1.80 ohm-cm	1.80 ohm-cm	particle size 15 um, pressure 2.5 t/cc
	2.25 ohm-cm	2.25 ohm-cm	particle size 10 um, pressure 2.5 t/cc
	140 ohm-cm	140 ohm-cm	8% graphite
	200 ohm-cm	200 ohm-cm	6.7% graphite
	400 ohm-cm	400 ohm-cm	5.4% graphite
	600 ohm-cm	600 ohm-cm	4.6% graphite

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

Descriptive Properties
Crystallite Height	80-90 nm
Flexural Strength	5.5 N		4% graphite
	6 N		5.1% graphite
	6.5 N		6% graphite
	7 N		7.4% graphite

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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CTIMCAL12 / 2654

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