Looking for High-Performance Plastic Components?

PEEK is a high performance thermoplastic used in many medical and pharmaceutical applications. Unreinforced grades of PEEK (polyetheretherketone) offer high elongation and toughness. All grades of PEEK offer excellent chemical and hydrolysis resistance similar to PPS (polyphenylene Sulfide), but can operate at higher temperatures. With a V-O flammability rating PEEK can be used continuously to 480 degrees F. in hot water and/or steam without permanent loss of physical properties. PEEK offers steam and wear resistance and is now available black making ideal for instrument components where aesthetics are important. Carbon fiber, Graphite and PTFE reinforced grades provide excellent dimensional stability and increased bearing and wear properties at higher loads. A new bearing grade; PEEK PVX offers superior bearing and wear performance at elevated pressure and velocity (PV) levels. PEEK PVX is an excellent alternative to bearing grade fluoropolymers, it also works well for seal components where ductility and inertness are important.

Specification Test Value Units
Specific Gravity, 73°F D792  1.31 -
Tensile Strength @ Yield, 73°F D638  16,000 psi
Tensile Modulus of Elasticity, 73°F D638  630,000 psi
Tensile Elongation (at break), 73°F D638  40 %
Flexural Strength, 73°F D790  25,000 psi
Flexural Modulus of Elasticity D790  600,000 psi
Shear Strength, 73°F D732  8,000 psi
Compressive Strength - Ultimate    16,000 psi
Compressive Strength at 2% Deformation D695   psi
Compressive Strength at 10% Deformation D695  20,000 psi
Deformation Under Load     %
Compressive Modulus of Elasticity, 73°F D695  500,000  
Compressive Strength ⊥ to Laminate (Modulus)     psi
Compressive Strength ⊥ to Laminate (Yield)     psi
Compressive Strength ⊥ to Laminate (Ultimate)     psi
Hardness, Durometer (Shore "D" scale) D2240  D85  
Hardness, Rockwell (Scale as noted) D785  M100 (R126) Rockwell M
Izod Impact, Notched @ 73°F D256 Type A  .6 ft.lbs/in. of notch
Coefficient of Friction (Dry vs Steel) Static PTM55007    
Coefficient of Friction (Dry vs Steel) Dynamic PTM55007  0.32  
Maximum Static Bearing Load (P) PTM55007  1,000 psi
Maximum Unlubricated No Load Bearing Velocity (V) PTM55007  400 ft/minute
Maximum Limiting PV (Unlubricated) PTM55007  8,500 psi x ft/min.
Wear Factor "K" x 10-10 PTM55010  375 Cubic in.-min/ft.lbs.hr
Sand Wheel Wear/Abrasion Test     UHMW=100
Minimum Mating Surface Hardness     Rockwell (Brinnell)
Coefficient of Linear Thermal Expansion E-831(TMA)  2.6 in/in/°F x 10-5
Coefficient of Thermal Expansion // to Laminates E-831(TMA)  2.6 in/in/°F x 10-5
Coefficient of Thermal Expansion I to Laminates E-831(TMA)  2.6 in/in/°F x 10-5
Softening Point     °F
Heat Deflection Temperature 264 psi D648  320 °F
Embrittlement Temperature     °F Min.
Continuous Service Temperature in Air    480 °F Max.
Short Term Service Temperature     °F Max.
Tg-Glass Transition (Amorphous) D3418  N/A °F
Melting Point (Crystalline) Peak D3418  644 °F
Thermal Conductivity F433  1.75 BTU-in/(hr/ft2°F)
Dielectric Strength Short Term D149  480 Volts/mil
Surface Resistivity D257  >1013 ohm/cm
Volume Resistivity D257   ohm/cm
Dielectric Constant, 106 Hz D150  3.30  
Dissipation Factor, 106 Hz D150  0.003  
Flammability @ 3.1mm(1/8 in.) UL94 UL94  V-O  
Arc Resistance     seconds
Water Absorption, Immersion 24 Hours D570 (2)  0.10 %
Water Absorption, Immersion Saturation D570 (2)  0.50 %
Machinability Rating    5 1=easy, 10=difficult
Rod Diameter Availability (Off the Shelf)   .250 - 4.0 inches
Sheet Thickness Availability (Off the Shelf)    .250 - 2.5 inches