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Rulon Bearings

Network Polymers Kepital® F20-52
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced
Material Notes: Description: Natural Acetal Copolymer, Weather Resistance Grade

Information provided by Network Polymers Inc.

A. Schulman has acquired Network Polymers.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.41 g/cc1.41 g/ccASTM D792
Moisture Absorption at Equilibrium 0.22 %0.22 %23°C at 60% RH; ASTM D570
Linear Mold Shrinkage 0.020 cm/cm0.020 in/inASTM D955
Melt Flow 10 g/10 min
@Load 2.16 kg,
Temperature 190 °C		10 g/10 min
@Load 4.76 lb,
Temperature 374 °F		Procedure A Condition E; ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 8080ASTM D785
Tensile Strength at Break 56.5 MPa8200 psiASTM D638
Elongation at Break 55 %55 %ASTM D638
Flexural Strength 80.7 MPa11700 psiASTM D790
Flexural Modulus 2.452 GPa355.6 ksiASTM D790
Poissons Ratio 0.350.35
Shear Strength 55.2 MPa8000 psiASTM D732
Izod Impact, Notched 0.587 J/cm1.10 ft-lb/inASTM D256
Coefficient of Friction 0.130.13Against Steel; Westover or Radial Type
 0.150.15Against Aluminum; Westover or Radial Type
 0.150.15Against Brass; Westover or Radial Type
 0.200.20Against Kepital; Westover or Radial Type
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+14 ohm-cm1.00e+14 ohm-cmASTM D257
Surface Resistance 1.00e+16 ohm1.00e+16 ohmASTM D257
Dielectric Constant  3.7
@Frequency 100 Hz		3.7
@Frequency 100 Hz		ASTM D150
 3.7
@Frequency 1e+7 Hz		3.7
@Frequency 1e+7 Hz		ASTM D150
Dissipation Factor  0.0010
@Frequency 100 Hz		0.0010
@Frequency 100 Hz		ASTM D150
 0.0070
@Frequency 1e+6 Hz		0.0070
@Frequency 1e+6 Hz		ASTM D150
Arc Resistance >= 200 sec>= 200 secASTM D495
 
Thermal PropertiesMetricEnglishComments
CTE, linear 130 µm/m-°C
@Temperature 20.0 °C		72.0 µin/in-°F
@Temperature 68.0 °F		ASTM D696
Melting Point 165 °C329 °F10°C/min heating; DSC
Deflection Temperature at 0.46 MPa (66 psi) 158 °C316 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 110 °C230 °FASTM D648
Vicat Softening Point 162 °C324 °F0.125 inch bar, 1 Kg; ASTM D1525
Flammability, UL94 HB
@Thickness 0.0790 mm		HB
@Thickness 0.00311 in

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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