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Rulon Bearings

KEP Kepital® F20-52 Acetal Copolymer
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced

Material Notes: Information provided by US distributor Polymer Technology and Services, LLC (PTS).

Key Words: Polyacetal; Polyoxymethylene; Korea Engineering Plastics
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
Density 1.41 g/cc0.0509 lb/in³ASTM D792
Water Absorption 0.22 %0.22 %24 hours at 73°F
Melt Flow 9.0 g/10 min
@Load 10.0 kg,
Temperature 220 °C
9.0 g/10 min
@Load 22.0 lb,
Temperature 428 °F
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 8080ASTM D785
Tensile Strength, Yield 59.3 MPa
@Thickness 3.17 mm
8600 psi
@Thickness 0.125 in
Elongation at Break 50 %
@Thickness 3.17 mm
50 %
@Thickness 0.125 in
Flexural Yield Strength 85.5 MPa
@Thickness 3.17 mm
12400 psi
@Thickness 0.125 in
Flexural Modulus 2.55 GPa
@Thickness 3.17 mm
370 ksi
@Thickness 0.125 in
Izod Impact, Notched 0.530 J/cm
@Thickness 3.17 mm
0.993 ft-lb/in
@Thickness 0.125 in
 
Thermal PropertiesMetricEnglishComments
Melting Point 165 °C329 °FASTM D789
Deflection Temperature at 0.46 MPa (66 psi) 158 °C316 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 110 °C230 °FASTM D648
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 165 - 180 °C329 - 356 °F
Middle Barrel Temperature 175 - 195 °C347 - 383 °F
Front Barrel Temperature 180 - 195 °C356 - 383 °F
Nozzle Temperature 180 - 195 °C356 - 383 °F
Melt Temperature 185 - 220 °C365 - 428 °F
Mold Temperature 70.0 - 90.0 °C158 - 194 °F
Drying Temperature 80.0 - 90.0 °C176 - 194 °F
Dry Time 3 - 4 hour3 - 4 hour
Injection Pressure 48.3 - 117 MPa7000 - 17000 psi

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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