HPMs – High-performance materials
PEK
Polyetherketone belongs to the PEEK family, and it has good wear resistance and sliding characteristics. It also has a good ability to withstand both dynamic and static loads. We deliver PEK as plastic sheets and rods.
- Physical properties
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Value Unit Test method Specific gravity 1.31 g/cm3 DIN EN ISO 1183 Average molecular mass N/A Water absorption, 24/96 h (23 °C) 0.02/0.04 % DIN EN ISO 62 Weather-resistance moderate Combustibility V0 UL 94 DIN EN ISO 527-2 Food safety no - Mechanical properties
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Value Unit Test method Modulus of elasticity 4600 MPa DIN EN ISO 527-2 Tensile strength 120 MPa DIN EN ISO 527-2 Elongation at break 4 % DIN EN ISO 527-2 Tensile strength at break 5 % DIN EN ISO 527-2 Flexural modulus 4600 MPa DIN EN ISO 178 Flexural strength 192 MPa DIN EN ISO 178 Compressive modulus 3500 MPa EN ISO 604 Compressive strength, 1%/2% 25/45 MPa EN ISO 604 Impact strength (Charpy) does not break kJ/m2 DIN EN ISO 179-1eU Notch impact strength (Charpy) 4 kJ/m2 DIN EN ISO 179-1eA Notch impact strength (Izod) – kJ/m2 DIN EN ISO 180/2A Toughness (ball pressure) 282 MPa ISO 2039-1 Toughness (Shore D) N/A Wear-resistance N/A Coefficient of friction (against steel) N/A - Thermal properties
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Value Unit Test method Glass-transition temperature 160 °C DIN 53765 Melting point 375 °C DIN 53765 Operating temperature (instantaneous) +300 °C Operating temperature (continuous) 260 °C Operating temperature (minimum) -40 °C Thermal expansion coefficient, 23–60 °C 5 10-5 K-1 DIN EN ISO 11359-1;2 Thermal expansion coefficient, 23–100 °C 5 10-5 K-1 DIN EN ISO 11359-1;2 Specific heat capacity N/A Thermal conductivity N/A - Electrical properties
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Value Unit Test method Surface resistivity 1014 Ω DIN IEC 60093 Resistivity 1014 Ω×cm DIN IEC 60093 Dielectric strength 62 kV/mm DIN EN 60243-1 CTI value 200 V DIN EN 60112 - Optical properties
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Value Unit Test method Light transmittance N/A Refractive index N/A Optical errors N/A Abrasion-resistance, 100 rotations with 500 g N/A
Additional downloads
| Delivery selection | plastic sheets, plastic rods |
|---|---|
| Specific gravity | 1.31 g/cm3 |
| Service temperature | -40 … 260 °C |
| Price category | €€€+ (>€50/kg) |
Special properties
- good ability to withstands loads
- low creep
- electrically insulating nature
Applications
conveyor systems, mechanical engineering, wear plates, chemical industry
Standard colours
black
Premade pieces
Commonly known brands
TECAPEEK® HT