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

MechanicalASTM Test MethodValueUnits
Strength to Weight Ratio--ksi
Specific Gravity @73 FD7921.31-
Tensile Strength @73 F, (ult)/(yld)D63816,000 (ult)psi
Tensile Modulus of Elasticity @73 FD638500,000psi
Tensile Elongation at Break @73 FD63820%
Flexural Strength @73 FD79025,000psi
Flexural Modulus of Elasticity @73 FD790600,000psi
Shear Strength @73 FD7328,000psi
Comprehensive Strength, (% Deformation) @73 FD69520,000 (10)psi
Comprehensive Modulus of Elasticity @73 FD695500,000psi
Hardness, Rockwell, Scale as noted @73 FD785M100 (R126)-
Hardness, Durometer, Shore D @73 FD2240D85-
Izod Impact, (Notched) @73 FD256 Type A1.0ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic-0.40-
Limiting PV, (with 4 to 1 factor of safety applied)-5,500psi-ft/min
ThermalASTM Test MethodValueUnits
Coefficient of Linear Thermal Expansion @73 FE-831 (TMA)2.6 E-05in/in/F
Heat Deflection Temperature @264 psiD648320F
Tg-Glass transition termperature, (Amorphous)D3418-F
Melting Point, (VS=Vicat Softening Temp.)D3418644F
Continuous Service Temperature in Air, (Max.)-480F
Thermal Conductivity-1.75BTU-in/hr-ft2-F
ElectricASTM Test MethodValueUnits
Dielectric Strength, Short TermD149180Volts/mil
Volume ResistivityD2574.9 E+16ohm-cm
Dielectric Constant @10E6 HzD1503.3-
Dissipation Factor @10E6 HzD1500.003-
Flammability @3.1 mm unless notedUL94V-0-
H2OASTM Test MethodValueUnits
Water Absorption, Immersion, 24 hoursD570(7)0.10% by weight
Water Absorption, SaturationD570(7)0.50% by weight