Polikim EFALON® B-40 PTFE, 40% Bronze Filled

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Polikim EFALON® B-40 PTFE, 40% Bronze Filled
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Bronze Filled
Material Notes:	Bronze-filled Efalon® (PTFE) has better heat insulation, less thermal expansion, higher wear resistance properties and less deformation under load compared to virgin Efalon®. Applications: bearings, piston rings, valve sets, valve components. Information provided by Polikim Polimer.
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Physical Properties	Metric	English	Comments

Density	3.05 - 3.15 g/cc	0.110 - 0.114 lb/in³	ASTM D792
Deformation	1.1 - 1.2 % @Temperature 150 °C, Time 86400 sec, Pressure 0.981 MPa	1.1 - 1.2 % @Temperature 302 °F, Time 24.0 hour, Pressure 142 psi	total
	1.4 - 2.1 % @Temperature 23.0 °C, Time 86400 sec, Pressure 13.7 MPa	1.4 - 2.1 % @Temperature 73.4 °F, Time 24.0 hour, Pressure 1990 psi	permanent; ASTM D621
	3.8 - 4.9 % @Temperature 23.0 °C, Time 86400 sec, Pressure 13.7 MPa	3.8 - 4.9 % @Temperature 73.4 °F, Time 24.0 hour, Pressure 1990 psi	total; ASTM D621
	10 - 11 % @Temperature 150 °C, Time 86400 sec, Pressure 4.90 MPa	10 - 11 % @Temperature 302 °F, Time 24.0 hour, Pressure 711 psi	total

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	64 - 68	64 - 68	ASTM D2240
Tensile Strength, Ultimate	14.7 - 27.5 MPa	2130 - 3980 psi	ASTM D638
Elongation at Break	120 - 280 %	120 - 280 %	ASTM D638
Compressive Strength	9.81 - 10.3 MPa	1420 - 1490 psi	1% Deformation; ASTM D695
Izod Impact, Notched (ISO)	11.0 - 12.0 kJ/m²	5.23 - 5.71 ft-lb/in²	ASTM D256
Coefficient of Friction	0.12	0.12
Coefficient of Friction, Static	0.060	0.060
Limiting Pressure Velocity	0.00409 - 0.00441 MPa-m/sec	117 - 126 psi-ft/min	3 m/min
	0.00572 - 0.00621 MPa-m/sec	163 - 177 psi-ft/min	30 m/min
	0.00654 - 0.08175 MPa-m/sec	187 - 2334 psi-ft/min	300 m/min

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+8 ohm-cm	>= 1.00e+8 ohm-cm	ASTM D257
Surface Resistance	>= 1.00e+10 ohm	>= 1.00e+10 ohm	50% rel. humidity; ASTM D257

Thermal Properties	Metric	English	Comments
CTE, linear	80.0 - 95.0 µm/m-°C @Temperature 25.0 - 100 °C	44.4 - 52.8 µin/in-°F @Temperature 77.0 - 212 °F	ASTM D696
	95.0 - 110 µm/m-°C @Temperature 25.0 - 200 °C	52.8 - 61.1 µin/in-°F @Temperature 77.0 - 392 °F	ASTM D696
	125 - 135 µm/m-°C @Temperature 25.0 - 300 °C	69.4 - 75.0 µin/in-°F @Temperature 77.0 - 572 °F	ASTM D696
Thermal Conductivity	0.711 - 0.837 W/m-K	4.93 - 5.80 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	270 °C	518 °F	continuous
Minimum Service Temperature, Air	-260 °C	-436 °F

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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PPOLIK006 / 99816

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