Guarniflon PTFE G458 Polytetrafluoroethylene 60% Bronze, 2% Carbon

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Guarniflon PTFE G458 Polytetrafluoroethylene 60% Bronze, 2% Carbon
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Bronze Filled
Material Notes:	PTFE G Standard Compound with bronze Properties: Enhanced compressive strength. Good wear resistance and high thermal conductivity. Application: Unlubricated bearings for high speed excluding hard surfaces Information provided by Guarniflon®
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Physical Properties	Metric	English	Comments

Density	3.80 - 3.88 g/cc	0.137 - 0.140 lb/in³	extruded; ASTM D792
	3.80 - 3.90 g/cc	0.137 - 0.141 lb/in³	molded; ASTM D792
Deformation	1.5 - 2.5 % @Pressure 13.7 MPa, Time 86400 sec	1.5 - 2.5 % @Pressure 1990 psi, Time 24.0 hour	after 24hr relaxation; ASTM D621
	5.0 - 6.0 % @Pressure 13.7 MPa, Time 86400 sec	5.0 - 6.0 % @Pressure 1990 psi, Time 24.0 hour	ASTM D621

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	65 - 70	65 - 70	molded; ASTM D2240
	65 - 70	65 - 70	extruded; ASTM D2240
Tensile Strength	>= 13.0 MPa	>= 1890 psi	extruded; ASTM D4894, ASTM D4745
	17.0 - 23.0 MPa	2470 - 3340 psi	molded; ASTM D4894, ASTM D4745
Elongation at Break	>= 80 %	>= 80 %	extruded; ASTM D4745
	100 - 160 %	100 - 160 %	molded; ASTM D4894
Compressive Yield Strength	10.0 - 11.0 MPa @Strain 1 %	1450 - 1600 psi @Strain 1 %	ASTM D695
Coefficient of Friction, Dynamic	0.13	0.13	ASTM D1894
K (wear) Factor	>= 10.0 x 10^-8 mm³/N-M	>= 4.96 x 10^-10 in³-min/ft-lb-hr	at PV 100; ASTM D3702

Thermal Properties	Metric	English	Comments
CTE, linear	80.0 - 90.0 µm/m-°C	44.4 - 50.0 µin/in-°F	ASTM D696
Maximum Service Temperature, Air	260 °C	500 °F
Minimum Service Temperature, Air	-200 °C	-328 °F

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PGUARN011 / 142744

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