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	Original Value	Comments

Density	3.05 - 3.15 g/cc	ASTM D792
Deformation	1.1 - 1.2 % @Temperature 150 °C, Time 86400 sec, Pressure 0.981 MPa	total
	1.4 - 2.1 % @Temperature 23.0 °C, Time 86400 sec, Pressure 13.7 MPa	permanent; ASTM D621
	3.8 - 4.9 % @Temperature 23.0 °C, Time 86400 sec, Pressure 13.7 MPa	total; ASTM D621
	10 - 11 % @Temperature 150 °C, Time 86400 sec, Pressure 4.90 MPa	total

Mechanical Properties	Original Value	Comments
Hardness, Shore D	64 - 68	ASTM D2240
Tensile Strength, Ultimate	150 - 280 kg(f)/cm²	ASTM D638
Elongation at Break	120 - 280 %	ASTM D638
Compressive Strength	100 - 105 kg(f)/cm²	1% Deformation; ASTM D695
Izod Impact, Notched (ISO)	11.0 - 12.0 kJ/m²	ASTM D256
Coefficient of Friction	0.12
Coefficient of Friction, Static	0.060
Limiting Pressure Velocity	0.00409 - 0.00441 MPa-m/sec	3 m/min
	0.00572 - 0.00621 MPa-m/sec	30 m/min
	0.00654 - 0.08175 MPa-m/sec	300 m/min

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

Thermal Properties	Original Value	Comments
CTE, linear	80.0 - 95.0 µm/m-°C @Temperature 25.0 - 100 °C	ASTM D696
	95.0 - 110 µm/m-°C @Temperature 25.0 - 200 °C	ASTM D696
	125 - 135 µm/m-°C @Temperature 25.0 - 300 °C	ASTM D696
Thermal Conductivity	0.00170 - 0.00200 cal cm/sec-cm²-°C
Maximum Service Temperature, Air	270 °C	continuous
Minimum Service Temperature, Air	-260 °C

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PPOLIK006 / 99816

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