Guarniflon PTFE G412 Polytetrafluoroethylene 15% Graphite

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Guarniflon PTFE G412 Polytetrafluoroethylene 15% Graphite
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Extruded; Polytetrafluoroethylene (PTFE), Molded
Material Notes:	PTFE G Standard Compound with graphite. Properties: Extremely low coefficient of friction. Fairly good compressive strength. Enhanced chemical resistance. Good wear resistance. Good thermal dissipation. Application: Bearings for high speed on fairly hard surface. Information provided by Guarniflon®
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Physical Properties	Original Value	Comments

Density	2.09 - 2.14 g/cc	extruded; ASTM D792
	2.10 - 2.15 g/cc	molded; ASTM D792
Deformation	4.0 - 6.0 % @Pressure 13.7 MPa, Time 86400 sec	after 24hr relaxation; ASTM D621
	6.5 - 8.0 % @Pressure 13.7 MPa, Time 86400 sec	ASTM D621

Mechanical Properties	Original Value	Comments
Hardness, Shore D	55 - 60	molded; ASTM D2240
	55 - 60	extruded; ASTM D2240
Tensile Strength	>= 14.0 MPa	extruded; ASTM D4894, ASTM D4745
	15.0 - 20.0 MPa	molded; ASTM D4894, ASTM D4745
Elongation at Break	>= 70 %	extruded; ASTM D4745
	170 - 250 %	molded; ASTM D4894
Compressive Yield Strength	6.50 - 7.50 MPa @Strain 1 %	ASTM D695
Coefficient of Friction, Dynamic	0.070	ASTM D1894
K (wear) Factor	60.0 x 10^-8 mm³/N-M	at PV 100; ASTM D3702

Thermal Properties	Original Value	Comments
CTE, linear	120 - 130 µm/m-°C	ASTM D696
Maximum Service Temperature, Air	260 °C
Minimum Service Temperature, Air	-200 °C

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PGUARN008 / 142741

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