Overview of materials for Polytetrafluoroethylene (PTFE), Bronze Filled

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Overview of materials for Polytetrafluoroethylene (PTFE), Bronze Filled
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Bronze Filled
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Polytetrafluoroethylene (PTFE), Bronze Filled". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Metric	English	Comments

Density	1.50 - 4.00 g/cc	0.0542 - 0.145 lb/in³	Average value: 3.01 g/cc Grade Count:63
Filler Content	27.0 - 63.0 %	27.0 - 63.0 %	Average value: 50.9 % Grade Count:10
Particle Size	0.240 - 740 µm	0.240 - 740 µm	Average value: 158 µm Grade Count:47
pH	9.00 - 10.3	9.00 - 10.3	Average value: 9.14 Grade Count:9
Specific Surface Area	3.00 - 20.0 m²/g	3.00 - 20.0 m²/g	Average value: 4.61 m²/g Grade Count:19
Viscosity	15.0 - 1.00e+12 cP	15.0 - 1.00e+12 cP	Average value: 1.38e+11 cP Grade Count:8
Linear Mold Shrinkage	0.0170 - 0.0200 cm/cm	0.0170 - 0.0200 in/in	Average value: 0.0184 cm/cm Grade Count:8

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	55.0 - 72.0	55.0 - 72.0	Average value: 63.3 Grade Count:33
Ball Indentation Hardness	36.0 - 60.0 MPa	5220 - 8700 psi	Average value: 47.8 MPa Grade Count:11
Tensile Strength, Ultimate	3.00 - 44.0 MPa	435 - 6380 psi	Average value: 21.8 MPa Grade Count:50
Tensile Strength, Yield	14.0 - 20.0 MPa	2030 - 2900 psi	Average value: 16.3 MPa Grade Count:6
Elongation at Break	3.00 - 310 %	3.00 - 310 %	Average value: 171 % Grade Count:44
Compressive Yield Strength	6.50 - 20.0 MPa	943 - 2900 psi	Average value: 11.5 MPa Grade Count:10
Izod Impact, Notched	1.08 - 1.40 J/cm	2.02 - 2.62 ft-lb/in	Average value: 1.29 J/cm Grade Count:4
Coefficient of Friction	0.0600 - 0.230	0.0600 - 0.230	Average value: 0.146 Grade Count:23
Coefficient of Friction, Static	0.0600 - 0.300	0.0600 - 0.300	Average value: 0.147 Grade Count:15
K (wear) Factor	9.00 - 32.0 x 10^-8 mm³/N-M	4.47 - 15.9 x 10^-10 in³-min/ft-lb-hr	Average value: 14.3 x 10^-8 mm³/N-M Grade Count:6

Electrical Properties	Metric	English	Comments
Electrical Resistivity	10000 - 8.10e+16 ohm-cm	10000 - 8.10e+16 ohm-cm	Average value: 4.76e+15 ohm-cm Grade Count:17
Surface Resistance	10000 - 5.50e+16 ohm	10000 - 5.50e+16 ohm	Average value: 5.50e+15 ohm Grade Count:11
Dielectric Strength	10.0 - 75.0 kV/mm	254 - 1910 kV/in	Average value: 50.0 kV/mm Grade Count:3

Thermal Properties	Metric	English	Comments
CTE, linear	65.0 - 180 µm/m-°C	36.1 - 100 µin/in-°F	Average value: 101 µm/m-°C Grade Count:16
	64.35 - 130 µm/m-°C @Temperature -60.0 - 300 °C	35.75 - 72.2 µin/in-°F @Temperature -76.0 - 572 °F	Average value: 83.5 µm/m-°C Grade Count:4
CTE, linear, Transverse to Flow	62.59 - 66.0 µm/m-°C @Temperature -60.0 - 250 °C	34.77 - 36.7 µin/in-°F @Temperature -76.0 - 482 °F	Average value: 64.4 µm/m-°C Grade Count:2
Thermal Conductivity	0.350 - 1.25 W/m-K	2.43 - 8.70 BTU-in/hr-ft²-°F	Average value: 0.771 W/m-K Grade Count:11
Melting Point	315 - 335 °C	599 - 635 °F	Average value: 327 °C Grade Count:17
Maximum Service Temperature, Air	200 - 300 °C	392 - 572 °F	Average value: 258 °C Grade Count:24
Minimum Service Temperature, Air	-260 - -40.0 °C	-436 - -40.0 °F	Average value: -164 °C Grade Count:22
Flammability, UL94	V-0	V-0	Grade Count:10

Processing Properties	Metric	English	Comments
Processing Temperature	360 °C	680 °F	Average value: 360 °C Grade Count:3

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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