PEEK (polyetheretherketone) is a high-performance engineering plastic with outstanding resistance to harsh chemicals and excellent mechanical strength and dimensional stability. It offers hydrolysis resistance to steam, water, and sea water, along with the ability to maintain stiffness at high temperatures. This engineering plastic has a proven track record in challenging environments such as aerospace, oil and gas, and semiconductor. PEEK is widely used for medical instrument parts and food processing and semiconductor machinery components.
PEEK is available in virgin (unfilled), glass-filled, bearing grade, and FDA compliant grades. Please ask your Curbell Plastics representative for more specific information.
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For a glossary of terms, see our Plastic Properties Descriptions.
TYPICAL PROPERTIES
| |
UNITS |
ASTM TEST |
|
| Tensile Strength |
psi |
D638 |
14,000 |
| Flexural Modulus of Elasticity |
psi |
D790 |
590,000 |
| Izod Impact (notched) |
ft-lbs/in of notch |
D256 |
1.6 |
| Heat Deflection Temperature (66psi / 264psi) |
°F |
D648 |
- 306 |
Water Absorption
(Immersion 24 hours) |
% |
D570 |
0.50 |
PHYSICAL PROPERTIES
| |
UNITS |
ASTM TEST |
|
| Specific Gravity |
- |
D792 |
1.32 |
Water Absorption
(Immersion 24 hours) |
% |
D570 |
0.50 |
MECHANICAL PROPERTIES
| |
UNITS |
ASTM TEST |
|
| Tensile Strength |
psi |
D638 |
14,000 |
| Tensile Modulus of Elasticity |
psi |
D638 |
490,000 |
| Tensile Elongation |
% |
D638 |
60 |
| Flexural Strength |
psi |
D790 |
24,600 |
| Flexural Modulus of Elasticity |
psi |
D790 |
590,000 |
| Compressive Strength |
psi |
D695 |
- |
| Hardness |
scale as noted |
D785, D2240 |
M105, R126, Shore D 85 |
| Izod Impact |
ft-lbs/in |
D256 |
1.6 |
THERMAL PROPERTIES
| |
UNITS |
ASTM TEST |
|
| Coefficient of Linear Thermal Expansion |
in/in/°F x 10-5 |
D696 |
2.6 |
| Heat Deflection Temperature (66psi / 264psi) |
°F |
D648 |
- 306 |
| Max Continuous Service Temperature In Air |
°F |
- |
480 |
ELECTRICAL PROPERTIES
| |
UNITS |
ASTM TEST |
|
| Dielectric Strength |
V/mil |
D149 |
480 |
OPTICAL PROPERTIES
| |
UNITS |
ASTM TEST |
|
| Light Transmittance |
% |
D1003 |
- |
| Haze |
% |
D1003 |
- |
OTHER
| |
UNITS |
ASTM TEST |
|
| Coefficient of Friction |
- |
Dynamic |
0.25 |
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
Still Not Sure if You Need PEEK? Research PEEK or Ask a Plastics Expert.