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PA6.6 – Polyamide 6.6 PA66 GF50

AKROMID® A28 GF 50 1 GIT black (5029)

AKROMID® A28 GF 50 1 GIT black (5029) is a 50% glass fibre reinforced, heat stabilised, easy flowing polyamide 6.6 with very high stiffness and strength, for gas injection technology

Typical applications

Engineering parts, which are produced by gas injection technology. Furthermore AKROMID® A28 GF 50 1 GIT black (5029) can be used for standard injection moulding for demanding surface quality.

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. 17500 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m. 270 MPa

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

    Flexural modulus (2 mm/min | ISO 178)
    d.a.m. 16800 MPa

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

    Flexural strain at break (2 mm/min | ISO 178)
    d.a.m. 3 %

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m. 100 kJ/m²

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

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

    Temperature of deflection under load HDT/C (8 MPa | ISO 75) 225 °C

    Melting temperature (DSC, 10K/min | DIN EN 11357-1) 260 °C

    Coefficent of linear thermal expansion, parallel (23°C bis 80°C | ISO 11359-1/2) 0,15 1,0E-4/K

    Coefficent of linear thermal expansion, transverse (23°C bis 80°C | ISO 11359-1/2) 0,78 1,0E-4/K

  • Flammability
    Burning rate (UL 94)
    1,6mm Wall thickness HB Class

    Burning rate (<100 mm/min) (> 1 mm Thickness | FMVSS 302) +

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

    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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