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 |