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Preliminary datasheet

PA6.6 – Polyamide 6.6 PA66 GF50

AKROMID® A3 GF 50 4 black (2994)

17000 MPa

250 MPa

105 kJ/m²

AKROMID® A3 GF 50 4 black (2994) is a 50% glass fibre reinforced, hydrolysis/chemical stabilised polyamide 6.6 with very high rigidity and strength

Typical applications

Functional parts in the heating- and cooling system in the automotive industry.

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

  • Mechanical Properties
    Tensile modulus (1 mm/min | ISO 527-2)
    d.a.m. 17000 MPa
    conditioned 13000 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m. 250 MPa
    conditioned 180 MPa

    Strain at break (5 mm/min | ISO 527-2)
    d.a.m. 3,0 %
    conditioned 4,0 %

    Flexural modulus (2 mm/min | ISO 178)
    d.a.m. 15500 MPa

    Flexural strength (2 mm/min | ISO 178)
    d.a.m. 380 MPa

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m. 105 kJ/m²
    conditioned 110 kJ/m²

    Charpy impact strength (-30°C | ISO 179-1/1eU)
    d.a.m. 105 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA)
    d.a.m. 20 kJ/m²
    conditioned 25 kJ/m²

  • Thermal Properties
    Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 260 °C

    Melting temperature (DSC, 10K/min | DIN EN 11357-1) 262 °C

    Temperature index for 50% loss of tensile strength after 5.000h (5.000 h | IEC 60216) 160 °C

  • General properties
    Density (23°C | ISO 1183) 1,57 g/cm³

    Humidity absorption (70°C, 62% r.H. | ISO 1110) 1,3-1,5 %

    Water absorption 23°C saturated (23°C, saturated | ISO 62) 3,7-4,3 %

    Molding shrinkage (flow | ISO 294-4) 0,1-0,3 %

    Molding shrinkage (transverse | ISO 294-4) 0,5-0,7 %

Disclaimer

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.

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