Polyether ether ketone (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications.  Ketron® PEEK™ is a trade name for polyether ether ketone material.  Other trade names for this product are SustaPEEK, Victrex® and TECAPEEK®

MIL P 46183

Mechanical ASTM Test Method Value Units
Strength to Weight Ratio - - ksi
Specific Gravity @73 F D792 1.31 -
Tensile Strength @73 F, (ult)/(yld) D638 16,000 (ult) psi
Tensile Modulus of Elasticity @73 F D638 500,000 psi
Tensile Elongation at Break @73 F D638 20 %
Flexural Strength @73 F D790 25,000 psi
Flexural Modulus of Elasticity @73 F D790 600,000 psi
Shear Strength @73 F D732 8,000 psi
Comprehensive Strength, (% Deformation) @73 F D695 20,000 (10) psi
Comprehensive Modulus of Elasticity @73 F D695 500,000 psi
Hardness, Rockwell, Scale as noted @73 F D785 M100 (R126) -
Hardness, Durometer, Shore D @73 F D2240 D85 -
Izod Impact, (Notched) @73 F D256 Type A 1.0 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - 0.40 -
Limiting PV, (with 4 to 1 factor of safety applied) - 5,500 psi-ft/min
Thermal ASTM Test Method Value Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 2.6 E-05 in/in/F
Heat Deflection Temperature @264 psi D648 320 F
Tg-Glass transition termperature, (Amorphous) D3418 - F
Melting Point, (VS=Vicat Softening Temp.) D3418 644 F
Continuous Service Temperature in Air, (Max.) - 480 F
Thermal Conductivity - 1.75 BTU-in/hr-ft2-F
Electric ASTM Test Method Value Units
Dielectric Strength, Short Term D149 180 Volts/mil
Volume Resistivity D257 4.9 E+16 ohm-cm
Dielectric Constant @10E6 Hz D150 3.3 -
Dissipation Factor @10E6 Hz D150 0.003 -
Flammability @3.1 mm unless noted UL94 V-0 -
H2O ASTM Test Method Value Units
Water Absorption, Immersion, 24 hours D570(7) 0.10 % by weight
Water Absorption, Saturation D570(7) 0.50 % by weight