Medical grade PEKK composite

This carbon filled composite is based on PEKK, and offers higher thermal stability than PEEK based composites. Due to the 60% reinforcement with woven carbon fibre fabric, it provides extreme mechanical strength and stiffness combined with excellent dimensional stability.



Chemical designation
PEKK (Polyetherketoneketone)
1,61 g/cm3

Main Features

  • biocompatible
  • very high strength
  • high dimensional stability
  • very good sterilisable
  • inherent flame retardant
  • good heat deflection temperature

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Modulus of elasticity
    (tensile test)
    54300MPa1mm/min, warpDIN EN ISO 527-2
    Tensile strength585MPa50mm/min, 5N; warpDIN EN ISO 527-2
    Tensile strength626MPa50mm/min, 5N; fillDIN EN ISO 527-2
    Flexural strength960MPa10mm/min, 10 N; warpDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    50900MPa10mm/min, 10 N; warpDIN EN ISO 178
    Compression strength509MPa1% / 10%EN ISO 604
    Modulus of elasticity
    (tensile test)
    55300MPa1mm/min, fillDIN EN ISO 527-2
    Flexural strength900MPa10mm/min, 10 N; fillDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    47600MPa10mm/min, 10 N; fillDIN EN ISO 178
    Compression strength450MPa1% / 10%EN ISO 604
    Compression modulus5100MPa10mm/min, 5 N ; warpEN ISO 604
    Compression modulus4800MPa10mm/min, 5 N; fillEN ISO 604
    Compression modulus3470MPa10mm/min, 5 N; thicknessEN ISO 604
    Compression strength333MPa1% / 10%EN ISO 604
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Melting temperature380CDIN EN ISO 11357
    Service temperature260Clong termNN
    Thermal expansion (CLTE)0,510-5*1/K23-80°C, warpDIN EN ISO 11359-1;2
    Thermal expansion (CLTE)0,510-5*1/K23-80°C, fillDIN EN ISO 11359-1;2
    Glass transition temperature165CDIN EN ISO 11357
    Thermal expansion (CLTE)5%23-80°C, thicknessDIN EN ISO 11359-1;2
  • Other properties
    Other propertiesValueUnitParameterNorm
    Resistance to hot water/ bases+--
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;
    Resistance to weathering---
    Water absorption0.23%48h, 80°CDIN EN ISO 62

Stock program