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PEEK (polyetheretherketone) is a high strength alternative to fluoropolymers with an upper continuous-use temperature of 250°C (480°F). PEEK exhibits excellent mechanical and thermal properties, chemical inertness, creep resistance at high temperatures, low flammability, hydrolysis resistance, and radiation resistance. These properties make PEEK a preferred product in the aircraft, automotive, semiconductor, and chemical processing industries. PEEK is used for wear and load bearing applications, such as, valve seats, pump gears, and compressor valve plates.
Data Sheet for PEEK (Polyether Ether - Ketone) |
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| Mechanical Property | ASTM Method | Unit | Peek Grade
|
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|---|---|---|---|---|---|---|---|---|
| Melt Flow Rate | D-3307 | g/10 min | 3-3.5 | 1.2-1.5 | 1.2-1.5 0.48-0.56 | |||
| Specific Gravity | D-792 | 1.32 | 1.49 | 1.44 | ||||
| Water Absorption, 24 hr. | D-570 | % | 0.5 | 0.11 | 0.06 | |||
| Tensile Strength, 23°C | D-638 | psi | 14,500 | 24,650 | 32,770 | |||
| Elongation, 23°C | D-638 | % | 50 | 2.2 | 1.3 | |||
| Compressive Strength, 23°C at 5% strain | D-695 | psi | 17,110 | 31,175 | 34,800 | |||
| Impact Strength, 23°C, Notched Izod | D-256 | ft-lb/in | 1.57 | 1.8 | 1.59 | |||
| Flexural Modulus, 23°C | D-790 | psi | 594,500 | 1,450,000 | 2,900,000 | |||
| Rockwell Hardness, R scale | D-785 | R | 126 | 124 | 124 | |||
| Coefficient of Friction | D-1894 | -- | -- | -- | ||||
| Deformation Under Load, 23°C, 100 psi, 10 hr. | D-621 | % | -- | -- | -- | |||
| Thermal Property | ||||||||
| Melting Point | DSC | °C | 340 | 340 | 340 | |||
| Deflection Temperature (264 psi) | D-648 | °C | 160 | 315 | 276 | |||
| Oxygen Index | D-2863 | % | 24 | -- | -- | |||
| Max. Service Temperature | °C | 250 | 250 | 250 | ||||
| Thermal Conductivity | C-177 | Btu-in/hr-ft2-F | 1.75 | 0.43 | 0.24 | |||
| Flammability | UL 94 | V-O | V-O | V-O | ||||
| Electrical Property | ||||||||
| Surface Resistivity | D-257 | ohm-sq | -- | -- | -- | |||
| Volume Resistivity | D-257 | ohm-cm | 4.9 x 1016 | -- | -- | |||
| Dielectric Strength (0.05 mil film) | D-149 | KV/cm | 190 | -- | -- | |||
| Dielectric Constant, 21°C, 50 Hz-10 kHz | D-150 | 3.2-3.3 | -- | -- | ||||
| Dissipation Factor, 21°C, 1 MHz | D-150 | 0.003 | -- | -- | ||||
| Arc Resistance | D-495 | sec | -- | -- | -- | |||
PEEK MPDS Pdf