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PA6.6 – Polyamide 6.6 PA66 GF25 FR

AKROMID® A3 K1 FR natural (2312)

9200 MPa

140 MPa

65 kJ/m²

AKROMID® A3 K1 FR natural (2312) is a 25% glass fibre reinforced, halogen- and red phosphourus free flame retardant polyamide 6.6 with light inherent color, all color listed at UL and NF F 16-101.

The formulation of this product is not based on the latest state of the art raw materials and additives. The successor of this product is A3 GF 25 FR natural (7649). It offers better thermal stability and lower corrosion during processing

Typical applications

Switch housings in the electric 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 2 - 4 h

Drying temperature (τ ≤ -30°C) 80°C

Processing moisture 0,02 - 0,08%

1 Feed section 60 - 80°C

2 Temperature zone 1 - Zone 4 260 - 290°C

3 Nozzle temperature 260 - 300°C

4 Melt temperature 270 - 290°C

5 Mold temperature 60 - 100°C

P Nach Holding pressure, spec. 300 - 800 bar

P Stau Back pressure, spec. 30 - 100 bar

Injection speed medium

Screw speed 5 - 10 m/min

  • Mechanical Properties
    Tensile modulus (1 mm/min | ISO 527-2)
    d.a.m. 9200 MPa
    conditioned 6500 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m. 140 MPa
    conditioned 100 MPa

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

    Flexural modulus (2 mm/min | ISO 178)
    d.a.m. 9000 MPa
    conditioned 7000 MPa

    Flexural strength (2 mm/min | ISO 178)
    d.a.m. 220 MPa
    conditioned 170 MPa

    Flexural strain at break (2 mm/min | ISO 178)
    d.a.m. 3 %
    conditioned 4 %

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m. 65 kJ/m²
    conditioned 70 kJ/m²

    Charpy impact strength (-30°C | ISO 179-1/1eU)
    d.a.m. 65 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA)
    d.a.m. 11 kJ/m²
    conditioned 13 kJ/m²

    Izod-notched impact strength (23°C | ISO 180/1A)
    d.a.m. 10 kJ/m²

    Ball indentation hardness (358N/30s | ISO 2039-1)
    d.a.m. 221 MPa

  • Thermal Properties
    Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 246 °C

    Temperature of deflection under load HDT/B (0,45 MPa | ISO 75) 261 °C

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

    Temperature index for 50% loss of tensile strength after 20.000h (20.000 Std. | IEC 60216) 120-130 °C

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

    GWFI (IEC 60695-2-12)
    0,4mm Wall thickness 960 °C
    0,8mm Wall thickness 960 °C
    1,6mm Wall thickness 960 °C
    3,2mm Wall thickness 960 °C

    GWIT (IEC 60695-2-13)
    0,4mm Wall thickness 775 °C
    0,8mm Wall thickness 750 °C
    1,6mm Wall thickness 775 °C
    3,2mm Wall thickness 775 °C

    HWI (UL 746A)
    0,8mm Wall thickness 0 PLC

    HAI (UL 746A)
    0,8mm Wall thickness 0 PLC

    Oxygen index (ISO 4589-2) 32 %

  • General properties
    Density (23°C | ISO 1183) 1,34 g/cm³

    Molding shrinkage (flow | ISO 294-4) 0,2-0,4 %

    Molding shrinkage (transverse | ISO 294-4) 0,9-1,1 %

  • Electrical Properties
    Comparative tracking index (Test liquid A | IEC 60112) 600 V

    Dieletric strength (3 mm | IEC 60243) 28 kV/mm

    Permittivity (1 MHz | IEC 60250) 3,7

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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