PA 6.6 CF20

PA – Polyamide

PA 6.6 CF20

PA 6.6 CF20 is a PA 6.6 with a carbon content of 20%. The carbon fibre improves the material’s precision‑related properties, increases the acceptable temperature in use, and enhances the mechanical strength. Because of the additive, the material is electrically conductive (with a surface resistivity of 10^2–10^8 Ω) rather than insulating.

Physical properties
  Value Unit Test method
Specific gravity 1.23 g/cm3 DIN EN ISO 1183
Average molecular mass N/A
Water absorption, 24/96 h (23 °C) 0.1/0.3 % DIN EN ISO 62
Weather-resistance good
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety no
Mechanical properties
  Value Unit Test method
Modulus of elasticity 5,100 MPa DIN EN ISO 527-2
Tensile strength 104 MPa DIN EN ISO 527-2
Elongation at break 12 % DIN EN ISO 527-2
Tensile strength at break 13 % DIN EN ISO 527-2
Flexural modulus 4,300 MPa DIN EN ISO 178
Flexural strength 135 MPa DIN EN ISO 178
Compressive modulus 3,800 MPa EN ISO 604
Compressive strength, 1%/2% 16/33 MPa EN ISO 604
Impact strength (Charpy) 116 kJ/m2 DIN EN ISO 179-1eU
Notch impact strength (Charpy) N/A
Notch impact strength (Izod) kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) 200 MPa ISO 2039-1
Toughness (Shore D) N/A
Wear-resistance N/A
Coefficient of friction (against steel) N/A
Thermal properties
  Value Unit Test method
Glass-transition temperature 48 °C DIN 53765
Melting point 251 °C DIN 53765
Operating temperature (instantaneous) +170 °C
Operating temperature (continuous) 100 °C
Operating temperature (minimum) N/A
Thermal expansion coefficient, 23–60 °C 9 10-5 K-1 DIN EN ISO 11359-1;2
Thermal expansion coefficient, 23–100 °C 10 10-5 K-1 DIN EN ISO 11359-1;2
Specific heat capacity 1.4 J/(g×K) ISO 22007-4:2008
Thermal conductivity 0.72 W/(m×K) ISO 22007-4:2008
Electrical properties
  Value Unit Test method
Surface resistivity 104–1010 DIN IEC 60093
Resistivity 103–109 Ω×cm DIN IEC 60093
Dielectric strength N/A
CTI value N/A
Optical properties
  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 sheets, bars
Specific gravity 1.23 g/cm3
Service temperature N/A … 100 °C
Price category €€€+ (>€50/kg)

Special properties

  • great mechanical strength
  • good creep-resistance
  • extremely good dimensional accuracy
  • low water absorption
  • suitability for high service temperatures
  • low thermal expansion
  • high resistance to UV radiation
  • electrical conductivity
  • good resistance to many oils, greases, and fuels

Applications

components used at high temperatures, precision objects, thermal insulation, precision parts, conveyor systems, mechanical engineering

Standard colours

black

Premade pieces

enquire

Commonly known brands

CENTROMID® 6.6 CF, TECAMID® 66 CF20