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Ensinger PEI

Envalior Arnite® B427 SE/R PBT-GF35 FR(17)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Glass Fiber Filled, Flame Retardant

Material Notes: 35% Glass Reinforced, Flame Retardant

Former DSM Engineering Plastics product line is now with Envalior.

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Physical PropertiesMetricEnglishComments
Density 1.69 g/cc0.0611 lb/in³ISO 1183
Water Absorption 0.30 %0.30 %Sim. To ISO 62
Moisture Absorption 0.150 %0.150 %Sim. To ISO 62
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 115 MPa16700 psiISO 527-1/-2
Elongation at Break 1.5 %1.5 %ISO 527-1/-2
Tensile Modulus 11.5 GPa1670 ksiISO 527-1/-2
Charpy Impact Unnotched  4.00 J/cm²
@Temperature 23.0 °C
19.0 ft-lb/in²
@Temperature 73.4 °F
ISO 179/1eU
 4.00 J/cm²
@Temperature -30.0 °C
19.0 ft-lb/in²
@Temperature -22.0 °F
ISO 179/1eU
Charpy Impact, Notched  0.500 J/cm²
@Temperature 23.0 °C
2.38 ft-lb/in²
@Temperature 73.4 °F
ISO 179/1eA
 0.500 J/cm²
@Temperature -30.0 °C
2.38 ft-lb/in²
@Temperature -22.0 °F
ISO 179/1eA
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cmIEC 60093
Dielectric Constant  3.9
@Frequency 1e+6 Hz
3.9
@Frequency 1e+6 Hz
IEC 60250
 4.1
@Frequency 100 Hz
4.1
@Frequency 100 Hz
IEC 60250
Dielectric Strength 28.0 kV/mm711 kV/inIEC 60243-1
Dissipation Factor  0.0020
@Frequency 100 Hz
0.0020
@Frequency 100 Hz
IEC 60250
 0.015
@Frequency 1e+6 Hz
0.015
@Frequency 1e+6 Hz
IEC 60250
Comparative Tracking Index 250 V250 VIEC 60112
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 220 °C428 °FISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 210 °C410 °FISO 75-1/-2
Flammability, UL94 V-0
@Thickness 1.50 mm
V-0
@Thickness 0.0591 in
IEC 60695-11-10
Glow Wire Flammability Index 960 °C
@Thickness 1.50 mm
1760 °F
@Thickness 0.0591 in
IEC 60695-2-12

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