Carbon filled PEEK

PEEK CF 30 is a 30% carbon filled PEEK material that is manufactured by Ensinger under the tradename TECAPEEK CF30 black. Its carbon fibre reinforcement lends the material a high level of rigidity and creep strength. Carbon fibre reinforced PEEK demonstrates very high mechanical strength values, while exhibiting lower density than 30% glass fibre filled peek. Furthermore, carbon fibre composites tend to be less abrasive than glass fibres while simultaneously resulting in improved wear and friction properties. The addition of carbon fibres also ensures a significantly higher level of heat conductivity which is also beneficial for increasing part life in sliding applications. Carbon filled PEEK has also an excellent resistance to hydrolysis in boiling water and superheated steam.
Due to its exceptional properties, TECAPEEK CF30 black is utilized in many of the most critical areas in general industry, as well as in the automotive, marine, nuclear, down hole oil well, electronics, and aerospace fields. TECAPEEK CF30 black is also available in a version suitable for medical applications (TECAPEEK MT CF30 black).

As with all Ensinger PEEK materials, we can confirm that carbon reinforced TECAPEEK CF30 black meets the limitations imposed by RoHS Directive 2011/65/EU Restriction of Hazardous Substances in electrical equipment. 



Chemical designation
PEEK (Polyetheretherketone)
1.38 g/cm3

Main Features

  • good chemical resistance
  • improved toughness
  • inherent flame retardant
  • hydrolysis and superheated steam resistant
  • very high stiffness
  • very high creep resistant
  • resistance against high energy radiation
  • high dimensional stability

Target industries

Technical details

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    Mechanical properties Value Unit Parameter Norm
    Modulus of elasticity
    (tensile test)
    6000 MPa 1mm/min DIN EN ISO 527-2
    Tensile strength 112 MPa 50mm/min DIN EN ISO 527-2
    Elongation at break (tensile test) 10 % 50mm/min DIN EN ISO 527-2
    Flexural strength 184 MPa 2mm/min, 10 N DIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    6100 MPa 2mm/min, 10 N DIN EN ISO 178
    Compression strength 25/47/111 MPa 1% / 2% / 5% EN ISO 604
    Impact strength (Charpy) 92 kJ/m2 max. 7,5J DIN EN ISO 179-1eU
    Shore hardness 90 D DIN EN ISO 868
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Parameter Norm
    Glass transition temperature 147 C DIN EN ISO 11357
    Melting temperature 341 C DIN EN ISO 11357
    Thermal conductivity 0.66 W/(k*m) ISO 22007-4:2008
    Specific heat 1.2 J/(g*K) ISO 22007-4:2008
    Service temperature 300 C short term NN
    Service temperature 260 C long term NN
    Thermal expansion (CLTE) 4 10-5*1/K 23-60°C, long. DIN EN ISO 11359-1;2
    Thermal expansion (CLTE) 4 10-5*1/K 23-100°C, long. DIN EN ISO 11359-1;2
    Thermal expansion (CLTE) 6 10-5*1/K 100-150°C, long. DIN EN ISO 11359-1;2
  • product-technical-detail-collapse-item-2-lvl-1
    Electrical properties Value Unit Parameter Norm
    surface resistivity 103- 1012 DIN EN 61340-2-3
    volume resistivity 103- 1012 Ω*cm DIN EN 61340-2-3
  • product-technical-detail-collapse-item-3-lvl-1
    Other properties Value Unit Parameter Norm
    Resistance to hot water/ bases + - -
    Flammability (UL94) V0 - corresponding to DIN IEC 60695-11-10;
    Resistance to weathering - - -
    Water absorption 0.02 - 0.03 % 24h / 96h (23°C) DIN EN ISO 62
  • product-technical-detail-collapse-item-4-lvl-1
    Relative costs Value Unit Parameter Norm
    Relative costs EU from € to €€€€€€ €€€€

Stock program