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Rulon Bearings

Polyplastics Duracon® M90-45 Acetal Co-polymer (POM), Weather resistance, General
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced

Material Notes: DURACON® is a crystalline thermoplastic acetal copolymer. The primary raw material trioxane, a trimer of formaldehyde.

The thermoplastic adopts a copolymer structure in which polyoxymethylene (-C-O) and carbon-carbon (-C-C- bond) comonomer groups are incorporated into its main chain. Therefore the copolymer has superior chemical and thermal stability, compared with acetal homopolymer.

Acetal co-polymer is well-balanced in terms of mechanical, chemical and thermal properties, and its superior moldability allows it to be widely employed in various industrial fields.

Information provided by PolyPlastics.

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Physical PropertiesMetricEnglishComments
Density 1.41 g/cc0.0509 lb/in³ISO 1183
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 62.0 MPa8990 psiISO 527-1, 2
Elongation at Break 35 %35 %ISO 527-1, 2
Tensile Modulus 2.70 GPa392 ksiISO 527-1, 2
Flexural Strength 87.0 MPa12600 psiISO 178
Flexural Modulus 2.50 GPa363 ksiISO 178
Charpy Impact, Notched 0.600 J/cm²2.86 ft-lb/in²ISO 179/1eA
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+14 ohm-cm1.00e+14 ohm-cmIEC 60093
Surface Resistance 1.00e+16 ohm1.00e+16 ohmIEC 60093
Dielectric Strength 19.0 kV/mm483 kV/inIEC 60243-1
 
Thermal PropertiesMetricEnglishComments
CTE, linear 120 µm/m-°C
@Temperature 23.0 - 55.0 °C
66.7 µin/in-°F
@Temperature 73.4 - 131 °F
ISO 11359-2
CTE, linear, Transverse to Flow 120 µm/m-°C
@Temperature 23.0 - 55.0 °C
66.7 µin/in-°F
@Temperature 73.4 - 131 °F
ISO 11359-2
Deflection Temperature at 1.8 MPa (264 psi) 95.0 °C203 °FISO 75-1, 2
Flammability, UL94 HBHB

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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