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Ensinger PEI

Celanese Riteflex® XFR 440 TPC, Unfilled
Categories: Polymer; Thermoplastic; Polyester, TP; Polyester Thermoplastic Elastomer
Material Notes: Riteflex XFR 440 is a nominal 40 Shore D thermoplastic polyester elastomer featuring a halogen-free flame retardant system. It is UL certified to be V-0 at 1.5 mm in all colors. It exhibits an excellent balance of flexibility, flame redardance and processability.

Information provided by Celanese
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Physical PropertiesMetricEnglishComments
Density 1.20 g/cc0.0434 lb/in³ISO 1183
Melt Flow  7.1 g/10 min
@Load 2.16 kg,
Temperature 250 °C		7.1 g/10 min
@Load 4.76 lb,
Temperature 482 °F		ISO 1133
 15 g/10 min
@Load 2.16 kg,
Temperature 250 °C		15 g/10 min
@Load 4.76 lb,
Temperature 482 °F		[cm3/10min]; ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 404015 sec; ISO 868
Tensile Strength at Break 10.0 MPa1450 psi50mm/min; ISO 527-2/1A
Elongation at Break >= 50 %>= 50 %
 500 %500 %50mm/min; ISO 527-2/1A
Tensile Modulus 0.100 GPa14.5 ksi50mm/min; ISO 527-2/1A
Charpy Impact, Notched 2.50 J/cm²11.9 ft-lb/in²ISO 179/1eA
Tear Strength 40.0 kN/m228 pliISO 34-1
 
Electrical PropertiesMetricEnglishComments
Dielectric Strength 14.0 kV/mm356 kV/inIEC 60243-1
Comparative Tracking Index >= 600 V>= 600 VIEC 60112
 
Thermal PropertiesMetricEnglishComments
Melting Point 195 °C383 °F10°C/min; ISO 11357-1,-2,-3
Flammability, UL94 V-0
@Thickness 1.50 mm		V-0
@Thickness 0.0591 in
Oxygen Index 32.3 %32.3 %ISO 4589

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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