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Preliminary datasheet

PA6.6 – Polyamide 6.6 PA66 GF60

AKROMID® A3 GF 60 HU natural (6452)

20500 MPa

270 MPa

105 kJ/m²

AKROMID® A3 GF 60 HU natural (6452) is a 60% glass fibre reinforced and heat stabilised polyamide 6.6 with very high rigidity and strength and light inherent color

Typical applications

Components in mechanical engineering and 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.

6Drying time0 - 4 h

Drying temperature (τ ≤ -30°C)80°C

Processing moisture0,02 - 0,1%

1Feed section60 - 80°C

2Temperature zone 1 - Zone 4260 - 300°C

3Nozzle temperature270 - 310°C

4Melting temperature280 - 300°C

5Mold temperature80 - 100°C

P NachHolding pressure, spec.300 - 800 bar

P StauBack pressure, spec.50 - 150 bar

Injection speedmedium to high

Screw speed8 - 15 m/min

  • Mechanical Properties
    Tensile modulus (1 mm/min | ISO 527-2)
    d.a.m.20500 MPa
    conditioned15800 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m.270 MPa
    conditioned190 MPa

    Strain at break (5 mm/min | ISO 527-2)
    d.a.m.2,4 %
    conditioned2,5 %

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m.105 kJ/m²
    conditioned107 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA)
    d.a.m.20 kJ/m²
    conditioned22 kJ/m²

  • Thermal Properties
    RTI electrical 0,4mm Wall thickness (UL 746B)130 °C

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

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

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

    HWI (UL 746A)
    0,4mm Wall thickness4 PLC
    0,8mm Wall thickness4 PLC
    1,6mm Wall thickness4 PLC
    3,2mm Wall thickness4 PLC

    HAI (UL 746A)
    0,4mm Wall thickness0 PLC
    0,8mm Wall thickness0 PLC
    1,6mm Wall thickness0 PLC
    3,2mm Wall thickness0 PLC

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

  • General properties
    Density (23°C | ISO 1183)1,71 g/cm³

    Molding shrinkage (flow | ISO 294-4)0,1-0,2 %

    Molding shrinkage (transverse | ISO 294-4)0,4-0,6 %

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


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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