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PA6.6 – Polyamide 6.6 PA66 GF50

AKROMID® A3 GF 50 HU grey (6601)

AKROMID® A3 GF 50 HU grey (6601) is a 50% glass fiber reinforced polyamide 6.6 in grey (similiar to RAL 7035). It is characterised by a very high stiffness and strength. Furthermore, the material is heat stabilised and therefore perfectly suitable for technical parts in industrial engineering, in the automotive industry or for household appliances. The material is listed at UL in all colors.


Tensile Modulus
Tensile Strength
Impact Strength


heat stabilised 130


  • Mechanical Properties

    Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 17000 MPa
    conditioned 12500 MPa

    Stress at break (5 mm/min | ISO 527-2) d.a.m. 255 MPa
    conditioned 180 MPa

    Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,9 %
    conditioned 3,5 %

    Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 110 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 20 kJ/m²

  • Thermal Properties

    Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3) 262 °C

  • Flammability

    Burning rate (UL 94)
    0,8mm Wall thickness HB Class
    1,6mm Wall thickness HB Class
    3,2mm Wall thickness HB Class

  • General properties

    Density (23°C | ISO 1183) 1,58 g/cm³

Processing information

The listed values are recommendations. Higher values should be used for higher glass loadings. We recommend only de-humidifying or vacuum dryers. Extensive drying can cause filling problems and surface defects.

6 Drying time 0 - 4 h

Drying temperature (τ ≤ -30°C) 80°C

Processing moisture 0,02 - 0,1%

1 Feed section 60 - 80°C

2 Temperature zone 1 - Zone 4 260 - 300°C

3 Nozzle temperature 270 - 310°C

4 Melt temperature 280 - 300°C

5 Mold temperature 80 - 100°C

P Nach Holding pressure, spec. 300 - 800 bar

P Stau Back pressure, spec. 50 - 150 bar

Injection speed medium to high

Screw speed 8 - 15 m/min


All specifications and information given on this website are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKRO®, AKROMID®, AKROLEN®, AKROLOY®, AKROTEK®, ICX® and PRECITE® are registered trademarks of the Feddersen Group.

Measuring Curves

AKROMID® A, B, C Engineering Thermoplastic


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