Overview of materials for Acetal Homopolymer, PTFE-Filled

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Overview of materials for Acetal Homopolymer, PTFE-Filled
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Homopolymer, PTFE-Filled
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Acetal Homopolymer, PTFE-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	Original Value	Comments

Density	1.42 - 1.55 g/cc	Average value: 1.49 g/cc Grade Count:39
Water Absorption	0.0100 - 0.300 %	Average value: 0.171 % Grade Count:19
Moisture Absorption at Equilibrium	0.110 - 0.200 %	Average value: 0.147 % Grade Count:7
Additive Loading	5.00 - 20.0 %	Average value: 15.0 % Grade Count:3
Linear Mold Shrinkage	0.0100 - 0.0300 cm/cm	Average value: 0.0224 cm/cm Grade Count:19
Linear Mold Shrinkage, Transverse	0.0170 - 0.0260 cm/cm	Average value: 0.0218 cm/cm Grade Count:5
Melt Flow	2.20 - 13.0 g/10 min	Average value: 5.58 g/10 min Grade Count:9

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	77.0 - 87.0	Average value: 81.0 Grade Count:7
Hardness, Rockwell R	79.0 - 122	Average value: 104 Grade Count:12
Tensile Strength, Ultimate	41.4 - 64.8 MPa	Average value: 54.6 MPa Grade Count:23
Tensile Strength, Yield	41.4 - 71.0 MPa	Average value: 52.3 MPa Grade Count:20
Elongation at Break	3.00 - 50.0 %	Average value: 13.7 % Grade Count:28
Elongation at Yield	4.00 - 22.0 %	Average value: 11.6 % Grade Count:12
Modulus of Elasticity	1.55 - 3.28 GPa	Average value: 2.50 GPa Grade Count:21
Flexural Yield Strength	62.1 - 99.3 MPa	Average value: 80.7 MPa Grade Count:31
Flexural Modulus	2.07 - 3.41 GPa	Average value: 2.74 GPa Grade Count:34
Compressive Yield Strength	8.27 - 96.5 MPa	Average value: 51.8 MPa Grade Count:7
Compressive Modulus	1.38 - 2.03 GPa	Average value: 1.73 GPa Grade Count:5
Izod Impact, Notched	0.270 - 1.07 J/cm	Average value: 0.532 J/cm Grade Count:31
Izod Impact, Unnotched	0.320 - 13.3 J/cm	Average value: 5.06 J/cm Grade Count:19
Izod Impact, Notched (ISO)	4.00 - 4.50 kJ/m²	Average value: 4.33 kJ/m² Grade Count:3
Izod Impact, Unnotched (ISO)	29.7 - 45.2 kJ/m²	Average value: 38.0 kJ/m² Grade Count:3
Falling Dart Impact	5.20 - 7.20 J	Average value: 6.27 J Grade Count:3
Instrumented Impact Total Energy	0.770 - 0.960 J	Average value: 0.850 J Grade Count:3
Coefficient of Friction	0.0700 - 0.300	Average value: 0.189 Grade Count:6
Coefficient of Friction, Static	0.0700 - 0.180	Average value: 0.118 Grade Count:5
K (wear) Factor	18.1 - 40.3 x 10^-8 mm³/N-M	Average value: 27.9 x 10^-8 mm³/N-M Grade Count:6

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+14 - 1.00e+16 ohm-cm	Average value: 1.91e+15 ohm-cm Grade Count:16
Surface Resistance	1.00e+14 - 1.00e+16 ohm	Average value: 4.27e+15 ohm Grade Count:4
Dielectric Constant	3.10 - 3.50	Average value: 3.33 Grade Count:4
Dielectric Strength	15.7 - 20.0 kV/mm	Average value: 18.2 kV/mm Grade Count:8
Dissipation Factor	0.00500 - 0.0100	Average value: 0.00700 Grade Count:3

Thermal Properties	Original Value	Comments
CTE, linear	90.0 - 122 µm/m-°C	Average value: 101 µm/m-°C Grade Count:9
	91.8 - 91.8 µm/m-°C @Temperature 29.4 - 60.0 °C	Average value: 91.8 µm/m-°C Grade Count:1
Melting Point	119 - 178 °C	Average value: 171 °C Grade Count:20
Maximum Service Temperature, Air	85.0 - 150 °C	Average value: 112 °C Grade Count:10
Deflection Temperature at 0.46 MPa (66 psi)	73.9 - 171 °C	Average value: 154 °C Grade Count:20
Deflection Temperature at 1.8 MPa (264 psi)	93.3 - 168 °C	Average value: 111 °C Grade Count:36
Flammability, UL94	HB	Grade Count:14

Processing Properties	Original Value	Comments
Melt Temperature	182 - 220 °C	Average value: 204 °C Grade Count:20
Mold Temperature	40.0 - 107 °C	Average value: 81.3 °C Grade Count:19
Drying Temperature	71.0 - 121 °C	Average value: 95.0 °C Grade Count:19
Moisture Content	0.150 - 0.200 %	Average value: 0.156 % Grade Count:8
Dew Point	-31.7 °C	Average value: -31.7 °C Grade Count:7
Injection Pressure	68.9 - 103 MPa	Average value: 86.0 MPa Grade Count:8

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 go back to viewing the property data in MatWeb's normal format.

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