TECAMID 66 CF20 black

PA 66 filled with 20% carbon fibres

PA 66 CF20 is a 20% carbon fibre reinforced PA 66 that Ensinger manufactures under the trade name TECAMID 66 CF20 black. Its fibre reinforcement brings about increased rigidity, mechanical strength and creep strength, coupled with lower density and lower percentage of filler in comparison with 30% fibre filled PA 66 GF30. In addition to these properties, the carbon filled nylon is less abrasive than a glass filled nylon, and at the same time results in better sliding properties. Through the addition of carbon fibres, a significantly higher heat conductivity is achieved, ensuring fast dissipation of frictional heat which can also be beneficial for sliding applications. Carbon fibre reinforced nylon has no defined surface resistivity as the carbon fibres are chosen primarily for reinforcement, not for electrical activity. PA 66 with carbon fibre reinforcement tends to become very brittle with high filler content (e.g. PA 66-CF30), so the 20% carbon reinforcement has been found to strike a very good balance between strength and toughness.


Chemical designation
PA 66 (Polyamide 66)
1,23 g/cm3

Main Features

  • very high stiffness
  • good wear properties
  • no defined conductivity
  • good heat deflection temperature
  • good weldable and bondable
  • resistant to many oils, greases and fuels
  • high dimensional stability

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Modulus of elasticity
    (tensile test)
    5100MPa1mm/minDIN EN ISO 527-2
    Tensile strength104MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield104MPa50mm/minDIN EN ISO 527-2
    Elongation at yield12%50mm/minDIN EN ISO 527-2
    Elongation at break (tensile test)13%50mm/minDIN EN ISO 527-2
    Flexural strength135MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    4300MPa2mm/min, 10 NDIN EN ISO 178
    Compression strength16/33/89MPa1% / 2% / 5%EN ISO 604
    Compression modulus3800MPa5mm/min, 10 NEN ISO 604
    Impact strength (Charpy)116kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Ball indentation hardness200MPaISO 2039-1
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Glass transition temperature48CDIN EN ISO 11357
    Melting temperature251CDIN EN ISO 11357
    Service temperature170Cshort termNN
    Service temperature100Clong termNN
    Thermal expansion (CLTE)910-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)1010-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Thermal conductivity0.72W/(k*m)ISO 22007-4:2008
    Specific heat1.4J/(g*K)ISO 22007-4:2008
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity104-1010ODIN EN 61340-2-3
    volume resistivity103-109O*cmDIN EN 61340-2-3
  • Other properties
    Other propertiesValueUnitParameterNorm
    Resistance to hot water/ bases(+)--
    Flammability (UL94)HB-corresponding toDIN IEC 60695-11-10;
    Resistance to weathering(+)-NN
    Water absorption0.3%24h / 96h (23°C)DIN EN ISO 62

Stock program