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Preliminary datasheet

PA6.6 – Polyamide 6.6 PA66 GF50

AKROMID® A3 GF 50 HU black (6303)

18000 MPa

255 MPa

105 kJ/m²

AKROMID® A3 GF 50 HU black (6303) is a 50% glass fibre reinforced, heat stabilised polyamide 6.6 with very high rigidity and strength, listet at UL in all colors

Typical applications

Components in mechanical engineering and in the automotive industry

Regulatory

UL

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. 18000 MPa
    conditioned 12700 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. 2,8 %
    conditioned 3,5 %

    Charpy impact strength (23°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

  • Thermal Properties
    RTI electrical 0,4mm Wall thickness (UL 746B) 125 °C

    RTI electrical 0,8mm Wall thickness (UL 746B) 125 °C

    RTI electrical 1,6mm Wall thickness (UL 746B) 130 °C

    RTI electrical 3,2mm Wall thickness (UL 746B) 130 °C

    RTI impact 0,8mm Wall thickness (UL 746B) 120 °C

    RTI impact 1,6mm Wall thickness (UL 746B) 120 °C

    RTI impact 3,2mm Wall thickness (UL 746B) 120 °C

    RTI strength 0,8mm Wall thickness (UL 746B) 130 °C

    RTI strength 1,6mm Wall thickness (UL 746B) 130 °C

    RTI strength 3,2mm Wall thickness (UL 746B) 130 °C

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

    Temperature of deflection under load HDT/B (0,45 MPa | ISO 75) 260 °C

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

    Coefficent of linear thermal expansion, parallel (23°C bis 80°C | ISO 11359-1/2) 0,14 1,0E-4/K

    Coefficent of linear thermal expansion, transverse (23°C bis 80°C | ISO 11359-1/2) 1,25 1,0E-4/K

    Temperature index for 50% loss of tensile strength after 5.000h (5.000 h | IEC 60216) 155 °C

  • Flammability
    Burning rate (UL 94)
    0,4mm Wall thickness HB Class
    0,8mm Wall thickness HB Class
    1,6mm Wall thickness HB Class
    3,2mm Wall thickness HB Class

    GWFI (IEC 60695-2-12)
    0,8mm Wall thickness 700 °C
    1,6mm Wall thickness 700 °C
    3,2mm Wall thickness 700 °C

    HWI (UL 746A)
    0,4mm Wall thickness 4 PLC
    0,8mm Wall thickness 4 PLC
    1,6mm Wall thickness 4 PLC
    3,2mm Wall thickness 4 PLC

    HAI (UL 746A)
    0,4mm Wall thickness 0 PLC
    0,8mm Wall thickness 0 PLC
    1,6mm Wall thickness 0 PLC
    3,2mm Wall thickness 0 PLC

  • General properties
    Density (23°C | ISO 1183) 1,56 g/cm³

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

    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.

Notes

Please find out about our new grade: A3 GF 50 HU black (6666)

“conditioned” test values = conditioned, measured on test specimens stored according to DIN EN ISO 1110

“d.a.m.” = dry as moulded test values = residual moisture content <0.1%

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