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Ensinger PEI

Celanese Celanex® 6400 Polyester (PBT), 40% Glass/Mineral
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Glass + Mineral Filled

Material Notes: Warp resistant, good surface smoothness

Information provided by Celanese Corporation.

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Physical PropertiesMetricEnglishComments
Density 1.65 g/cc0.0596 lb/in³ASTM D792
Water Absorption 0.040 %0.040 %ASTM D570
Linear Mold Shrinkage, Flow 0.0050 cm/cm0.0050 in/in
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 8686ISO 2039-2
Tensile Strength, Ultimate 107 MPa15500 psiISO 527
Elongation at Break 2.0 %2.0 %ASTM D638
Flexural Strength 170 MPa24700 psiISO 178
Flexural Modulus 11.0 GPa1600 ksiISO 178
Izod Impact, Notched (ISO) 4.10 kJ/m²1.95 ft-lb/in²ISO 180/1A
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity >= 1.00e+16 ohm-cm>= 1.00e+16 ohm-cmASTM D257
Dielectric Constant 3.9
@Frequency 100 Hz
3.9
@Frequency 100 Hz
Dielectric Strength 22.0 kV/mm
@Thickness 3.17 mm
559 kV/in
@Thickness 0.125 in
50% R.H.; ASTM D149
Dissipation Factor 0.017
@Frequency 100 Hz
0.017
@Frequency 100 Hz
Comparative Tracking Index 310 V310 VASTM D3638
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 220 °C428 °FISO 75
Deflection Temperature at 1.8 MPa (264 psi) 200 °C392 °FISO 75
Flammability, UL94 HB
@Thickness 0.800 mm
HB
@Thickness 0.0315 in
UL94

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