PEEK (Polyetheretherketone)
Also available:
Peek Glass Filled | PEEK Carbon Filled | Peek PVX
The high-temperature plastic with outstanding mechanical properties. PEEK is a semi-crystalline, high performance thermoplastic for very demanding applications.
Key Features:
Very good dimensional stability
High thermal mechanical bearing strength
Creep resistant
Good chemical resistance
Hydrolysis resistant, even against super heated steam
Excellent resistance against high energy radiation
Good sliding properties
FDA approved
wear resistant
Electrically insulating Good machinability
Temperature:
Up to +250ºC, +310ºC short term
Applications: Gears, wear strips, bushes, metering pumps, light mountings, friction bearings, ball valve seals, pump housings, wafer supports, plug parts
Availability:
| Sheet size (mm): |
3000 x 500. |
| Thickness (mm): |
5 to 100. |
| Rod dia (mm): |
6 to 165. |
| Tube od (mm): |
40 to 360. |
| Length (mm): |
3000. |
Technical Information:
Information to be used as a guide only. It corresponds with our current knowledge and indicates possible applications. We cannot guarantee suitability for a specific application. Unless otherwise stated these values represent averages taken from injection moulded samples.
| Properties |
Unit |
Test Method DIN ASTM |
Result |
| Mechanical |
- |
- |
- |
| Density |
g/cm³ |
53479 |
1.32 |
| Tensile strength at yield |
MPa |
53455 |
92 |
| Tensile strength at break |
MPa |
53455 |
- |
| Elongation at Break |
% |
53455 |
50 |
| Modulus of elasticity in tension |
MPa |
53457 |
3600 |
| Modulus of elasticity in flexure |
MPa |
53457 |
4100 |
| Ball indentation hardness |
MPa |
53456 |
|
| Impact strength (Charpy) |
KJ/m² |
53453 |
no break |
| Creep rupture strength after 1000 hours with static load |
MPa |
- |
- |
| Time yield limit for 1% elongation after 1000 hours |
MPa |
- |
- |
| Coefficient of friction against hardened and ground steel p+0,05 N/mm2, v=0,6 m/s |
- |
- |
0.3 - 0.38 |
| Wear conditions as above |
µm/km |
- |
- |
| Thermal |
- |
- |
- |
| Crystalline melting point |
ºC |
53736 |
334 |
| Glass transition temperature |
ºC |
53736 |
143 |
| Heat distortion temperature method A |
ºC |
ISO 75 |
140 |
| Heat distortion temperature method B |
ºC |
ISO 75 |
182 |
| Max. service temperature short term |
ºC |
- |
300 |
| Max. service temperature long term |
ºC |
- |
250 |
| Coefficient of thermal conductivity |
W/(m K) |
- |
0.25 |
| Specific heat |
J/(g K) |
- |
0.32 |
| Coefficient of thermal expansion |
10-5/K |
- |
4.7 |
| Electrical |
- |
- |
- |
| Dielectric constant at 10 (5) Hz |
- |
53483 |
3.2 - 3.3 |
| Dielectric loss factor at 10(5) Hz |
- |
53483 |
0.001 - 0.004 |
| Specific Volume Resistance |
Ωcm |
53482 |
4.9 x 10 (16) |
| Surface Resistance |
O |
53482 |
- |
| Dielectric strength 1mm |
kV/mm |
53481 |
20 |
| Tracking resistance |
- |
53480 |
- |
| Miscellaneous |
- |
- |
- |
| Moisture Absorption: Equilibrium in standard atmosphere (23ºC / 50% relative humidity) |
% |
53714 |
0.1 |
| Water absorption at saturation at 23ºC |
% |
53495 |
0.5 |
| Resistance to hot water, washing soda |
- |
- |
not resistant |
| Flamability |
- |
UL 94 |
VO |
| Resistance to weathering |
- |
- |
not resistant |
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