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	Metric	English	Comments

Density	1.42 - 1.55 g/cc	0.0513 - 0.0560 lb/in³	Average value: 1.50 g/cc Grade Count:39
Water Absorption	0.0100 - 0.300 %	0.0100 - 0.300 %	Average value: 0.174 % Grade Count:21
Moisture Absorption at Equilibrium	0.110 - 0.200 %	0.110 - 0.200 %	Average value: 0.150 % Grade Count:8
Water Absorption at Saturation	0.720 - 1.00 %	0.720 - 1.00 %	Average value: 0.907 % Grade Count:3
Additive Loading	5.00 - 20.0 %	5.00 - 20.0 %	Average value: 15.0 % Grade Count:3
Linear Mold Shrinkage	0.0100 - 0.0300 cm/cm	0.0100 - 0.0300 in/in	Average value: 0.0226 cm/cm Grade Count:18
Linear Mold Shrinkage, Transverse	0.0210 - 0.0260 cm/cm	0.0210 - 0.0260 in/in	Average value: 0.0226 cm/cm Grade Count:4
Melt Flow	4.00 - 13.0 g/10 min	4.00 - 13.0 g/10 min	Average value: 6.14 g/10 min Grade Count:7

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	77.0 - 87.0	77.0 - 87.0	Average value: 81.5 Grade Count:8
Hardness, Rockwell R	79.0 - 122	79.0 - 122	Average value: 105 Grade Count:14
Hardness, Shore D	79.0 - 83.0	79.0 - 83.0	Average value: 80.9 Grade Count:4
Tensile Strength, Ultimate	41.4 - 64.8 MPa	6000 - 9400 psi	Average value: 54.1 MPa Grade Count:24
Tensile Strength, Yield	41.4 - 69.0 MPa	6000 - 10000 psi	Average value: 51.0 MPa Grade Count:19
Elongation at Break	3.00 - 22.0 %	3.00 - 22.0 %	Average value: 11.7 % Grade Count:29
Elongation at Yield	4.00 - 22.0 %	4.00 - 22.0 %	Average value: 10.7 % Grade Count:10
Modulus of Elasticity	1.55 - 3.28 GPa	225 - 475 ksi	Average value: 2.52 GPa Grade Count:23
Flexural Yield Strength	62.1 - 99.3 MPa	9000 - 14400 psi	Average value: 80.5 MPa Grade Count:32
Flexural Modulus	2.07 - 3.41 GPa	300 - 495 ksi	Average value: 2.75 GPa Grade Count:35
Compressive Yield Strength	8.27 - 96.5 MPa	1200 - 14000 psi	Average value: 56.6 MPa Grade Count:9
Compressive Modulus	1.38 - 2.07 GPa	200 - 300 ksi	Average value: 1.78 GPa Grade Count:7
Izod Impact, Notched	0.270 - 1.07 J/cm	0.506 - 2.00 ft-lb/in	Average value: 0.529 J/cm Grade Count:32
Izod Impact, Unnotched	0.320 - 13.3 J/cm	0.600 - 25.0 ft-lb/in	Average value: 4.81 J/cm Grade Count:18
Izod Impact, Notched (ISO)	4.00 - 4.50 kJ/m²	1.90 - 2.14 ft-lb/in²	Average value: 4.33 kJ/m² Grade Count:3
Izod Impact, Unnotched (ISO)	29.7 - 45.2 kJ/m²	14.1 - 21.5 ft-lb/in²	Average value: 38.0 kJ/m² Grade Count:3
Falling Dart Impact	5.20 - 7.20 J	3.84 - 5.31 ft-lb	Average value: 6.27 J Grade Count:3
Instrumented Impact Total Energy	0.770 - 0.960 J	0.568 - 0.708 ft-lb	Average value: 0.850 J Grade Count:3
Coefficient of Friction	0.0700 - 0.300	0.0700 - 0.300	Average value: 0.191 Grade Count:9
Coefficient of Friction, Static	0.0700 - 0.180	0.0700 - 0.180	Average value: 0.118 Grade Count:5
K (wear) Factor	18.1 - 121 x 10^-8 mm³/N-M	9.00 - 60.0 x 10^-10 in³-min/ft-lb-hr	Average value: 46.1 x 10^-8 mm³/N-M Grade Count:8
Limiting Pressure Velocity	0.0560 - 0.420 MPa-m/sec	1600 - 12000 psi-ft/min	Average value: 0.247 MPa-m/sec Grade Count:5

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+14 - 1.00e+16 ohm-cm	1.00e+14 - 1.00e+16 ohm-cm	Average value: 1.90e+15 ohm-cm Grade Count:16
Surface Resistance	1.00e+13 - 1.00e+16 ohm	1.00e+13 - 1.00e+16 ohm	Average value: 2.21e+15 ohm Grade Count:5
Dielectric Constant	3.10 - 3.60	3.10 - 3.60	Average value: 3.30 Grade Count:5
Dielectric Strength	15.7 - 20.0 kV/mm	400 - 508 kV/in	Average value: 18.0 kV/mm Grade Count:9
Dissipation Factor	0.00300 - 0.0100	0.00300 - 0.0100	Average value: 0.00725 Grade Count:4

Thermal Properties	Metric	English	Comments
CTE, linear	10.8 - 122 µm/m-°C	6.00 - 68.0 µin/in-°F	Average value: 91.5 µm/m-°C Grade Count:10
	91.8 - 91.8 µm/m-°C @Temperature 29.4 - 60.0 °C	51.0 - 51.0 µin/in-°F @Temperature 85.0 - 140 °F	Average value: 91.8 µm/m-°C Grade Count:1
Melting Point	119 - 180 °C	247 - 356 °F	Average value: 171 °C Grade Count:20
Maximum Service Temperature, Air	82.2 - 150 °C	180 - 302 °F	Average value: 109 °C Grade Count:12
Deflection Temperature at 0.46 MPa (66 psi)	73.9 - 171 °C	165 - 340 °F	Average value: 153 °C Grade Count:19
Deflection Temperature at 1.8 MPa (264 psi)	93.3 - 168 °C	200 - 334 °F	Average value: 111 °C Grade Count:37
Flammability, UL94	HB	HB	Grade Count:16

Processing Properties	Metric	English	Comments
Melt Temperature	182 - 218 °C	360 - 425 °F	Average value: 203 °C Grade Count:18
Mold Temperature	40.0 - 107 °C	104 - 225 °F	Average value: 80.8 °C Grade Count:18
Drying Temperature	71.0 - 121 °C	160 - 250 °F	Average value: 95.8 °C Grade Count:18
Moisture Content	0.150 %	0.150 %	Average value: 0.150 % Grade Count:7
Dew Point	-31.7 °C	-25.0 °F	Average value: -31.7 °C Grade Count:7
Injection Pressure	68.9 - 103 MPa	10000 - 15000 psi	Average value: 86.2 MPa Grade Count:7

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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