TECAPEEK ST black

PEKEKK - polyetherketonetherketoneketone

TECAPEEK ST black is a high temperature semi crystalline thermoplastic based on polyetherketonetherketoneketone (PEKEKK). TECAPEEK ST black is manufactured by Ensinger using VICTREX ST™ polymer. Due to its high glass transition temperature, excellent mechanical properties can be observed, even when the part is subjected to thermal loads. Furthermore, the material PEKEKK also satisfies requirements with regard to processability, purity and chemical resistance. Compared to TECAPEEK (PEEK) and TECAPEEK HT (PEK), the melt, glass transition temperature, and overall strength levels of TECAPEEK ST (PEKEKK) are noticeably higher, as is the mechanical loading capacity. Machined components made of PEKEKK often combine better strength and stiffness, as well as higher flexural strength, and also benefit from a higher heat deflection temperature.

Facts

Chemical designation
PEKEKK (Polyetherketoneetherketoneketone)
Colour
black
Density
1,32 g/cm3

Main Features

  • high thermal and mechanical capacity
  • very good chemical resistance
  • good machinability
  • good heat deflection temperature
  • low moisture absorption
  • high dimensional stability

Target industries

Technical details


  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Parameter Norm
    Tensile strength 134 MPa 50mm/min DIN EN ISO 527-2
    Tensile strength at yield 134 MPa 50mm/min DIN EN ISO 527-2
    Elongation at yield (tensile test) 5 % 50mm/min DIN EN ISO 527-2
    Elongation at break (tensile test) 13 % 50mm/min DIN EN ISO 527-2
    Flexural strength 193 MPa 2mm/min, 10 N DIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    4600 MPa 2mm/min, 10 N DIN EN ISO 178
    Compression strength 24/42/98 MPa 1% / 2% / 5% EN ISO 604
    Compression modulus 3500 MPa 5mm/min, 10 N EN ISO 604
    Impact strength (Charpy) n.b. kJ/m2 max. 7,5J DIN EN ISO 179-1eU
    Notched impact strength (Charpy) 4 kJ/m2 max. 7,5J DIN EN ISO 179-1eA
    Ball indentation hardness 275 MPa ISO 2039-1
    Modulus of elasticity
    (tensile test)
    4600 MPa 1mm/min DIN EN ISO 527-2
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Parameter Norm
    Melting temperature 384 C DIN EN ISO 11357
    Service temperature 300 C short term NN
    Service temperature 260 C long term NN
    Thermal expansion (CLTE) 5 10-5*1/K 23-60°C, long. DIN EN ISO 11359-1;2
    Thermal expansion (CLTE) 5 10-5*1/K 23-100°C, long. DIN EN ISO 11359-1;2
    Glass transition temperature 165 C DIN EN ISO 11357
    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 1014 O DIN IEC 60093
  • product-technical-detail-collapse-item-3-lvl-1
    Other properties Value Unit Parameter Norm
    Resistance to hot water/ bases + - -
    Resistance to weathering (+) - -
    Water absorption 0.03 % 24h / 96h (23°C) DIN EN ISO 62
    Flammability (UL94) V0 - corresponding to DIN IEC 60695-11-10;

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