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Ensinger PEI

Polikim KESTAMID® GRF Polyamide 6, Graphite Filled
Categories: Polymer; Thermoplastic; Nylon (Polyamide PA); Nylon 6 (PA6); Nylon 6, Carbon Fiber Filled

Material Notes: Graphite and special lubricants are evenly dispersed in its entirety in this type of Polikim's cast polyamide. The material is dark grey colored. Kestamid®-GRF has a high degree of crystallinity and better hardness and compression strength properties compared to standard Kestamid®. It has a low coeffient of friction and a high degree of abrasion resistance. It has good weatherability and UV resistance properties and can be more easily mechanically machined compared to standard Kestamid®. It also can be used in higher temperatures compared again to the standard type.

Information provided by Polikim Polimer.

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Physical PropertiesMetricEnglishComments
Density 1.15 g/cc0.0415 lb/in³ISO 1183
Water Absorption at Saturation 5.0 %5.0 %ISO 62
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 8585ISO 868
Tensile Strength, Ultimate 73.5 MPa10700 psiISO 527
Elongation at Break >= 20 %>= 20 %ISO 527
Tensile Modulus 4.10 GPa595 ksiISO 527
Compressive Strength 93.2 MPa13500 psiISO 604
Compressive Modulus 3.00 GPa435 ksiISO 604
Izod Impact, Notched (ISO) 5.00 kJ/m²2.38 ft-lb/in²ISO 180
Charpy Impact Unnotched NBNBISO 179
Coefficient of Friction 0.150.15
K Factor (Wear Factor) 0.200.20[mg/km]
K (wear) Factor 120 x 10-8 mm³/N-M59.6 x 10-10 in³-min/ft-lb-hr
 
Thermal PropertiesMetricEnglishComments
CTE, linear 80.0 µm/m-°C44.4 µin/in-°FISO 11359
Melting Point 220 °C428 °F
Maximum Service Temperature, Air 115 °C239 °Fcontinuous
 175 °C347 °Fshort term

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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