Unfilled Polyetheretherketone (PEEK)
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Unfilled Polyetherketone (PEK)
 

Thermo-Physical Properties

PROPERTYUNITVALUE / RANGE
Melting Point °C370 - 375
Density g mL-1 1.30 - 1.31
Coefficient of Thermal Expansion x 10-5cm / (cm °C) 5.0
Heat Deflection Temperature, 0.5 MPa °C  
Heat Deflection Temperature, 1.8 MPa °C 167 - 175
Thermal ConductivityW / mK 0.20 - 0.24
Rockwell Hardness,  M Scalen/a  98 - 103
   
 

Mechanical Properties at 23 °C

PROPERTY UNITVALUE / RANGE
Tensile Strength, Yield at 23 C MPa 100- 120
Tensile Strength, Break at 23 C MPa  
Elongation, Yield %  
Elongation, Break % 5 - 15
Tensile Modulus at 23 CMPa 4200 - 4600
Flexural Strength, Yield MPa 185 - 192
Flexural Modulus  MPa 4100 - 4600
Compressive Strength MPa45 - 135
Izod Notched J/m (kJ / m2) 55 - 60
Izod Unnotched kJ / m2 NB
 

Electrical Properties

PROPERTY UNITVALUE / RANGE
Volume Resistivity
Ohm-cm1016
 Dielectric Strength V/mm x 104 1.6 - 1.7
Dielectric Constant @ 1 MHz n/a  
Dissipation Factor @ 1 MHz n/a  
 

Other Properties

PROPERTY UNITVALUE / RANGE
Processing Temperature
°C200 - 220
Mold Shrinkage %  
Continuous Service Temperature °C 260 - 280
Water Absorption, 24 hr. Immersion% 0.02 - 0.08
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