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PPA – Polyphthalamide PPA GF50

AKROMID® T5 GF 50 black (6247)

20000 MPa

280 MPa

90 kJ/m²

High Performance grade.

AKROMID® T5 GF 50 black (6247) is a 50% glass fibre reinforced polyphthalamide with heat stabilization, very high rigidity and strength, as well as high temperature and chemical resistance.

This aromatic PPA keeps mechanical performance even at elevated temperatures or moisture pic-up

Typical applications

Dimensionally stable and rigid parts for engineered automotive, industrial or electrical applications requiring strength and durability even at high temperatures or moist conditions.

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)120°C

Processing moisture0,02 - 0,1%

1Feed section60 - 90°C

2Temperature zone 1 - Zone 4320 - 350°C

3Nozzle temperature330 - 350°C

4Melt temperature330 - 350°C

5Mold temperature120 - 160°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.20000 MPa
    conditioned20000 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m.280 MPa
    conditioned280 MPa

    Strain at break (5 mm/min | ISO 527-2)
    d.a.m.2,1 %
    conditioned2,1 %

    Poisson's ratio (0,05 % - 0,25 % | ISO 527-2)
    d.a.m.0,42

    Flexural modulus (2 mm/min | ISO 178)
    d.a.m.19000 MPa
    conditioned19000 MPa

    Flexural strength (2 mm/min | ISO 178)
    d.a.m.440 MPa
    conditioned380 MPa

    Flexural strain at break (2 mm/min | ISO 178)
    d.a.m.2,6 %
    conditioned2,6 %

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m.90 kJ/m²
    conditioned83 kJ/m²

    Charpy impact strength (-30°C | ISO 179-1/1eU)
    d.a.m.75 kJ/m²
    conditioned75 kJ/m²

    Charpy impact strength (-40°C | ISO 179-1/1eU)
    d.a.m.70 kJ/m²
    conditioned65 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA)
    d.a.m.13 kJ/m²
    conditioned13 kJ/m²

    Charpy notched impact strength (-30°C | ISO 179-1/1eA)
    d.a.m.12 kJ/m²
    conditioned11 kJ/m²

    Charpy notched impact strength (-40°C | ISO 179-1/1eA)
    d.a.m.12 kJ/m²
    conditioned11 kJ/m²

  • Thermal Properties
    Temperature of deflection under load HDT/A (1,8 MPa | ISO 75)280 °C

    Temperature of deflection under load HDT/C (8 MPa | ISO 75)237 °C

    Glass transition temperature (DSC, 2nd heating | DIN EN 11357-1)135 °C

    Melt temperature (DSC, 10K/min | DIN EN 11357-1)325 °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)0,47 1,0E-4/K

    Temperature index for 50% loss of tensile strength after 20.000h (20.000 Std. | IEC 60216)155 °C

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

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

  • General properties
    Density (23°C | ISO 1183)1,65 g/cm³

    Humidity absorption (70°C, 62% r.H. | ISO 1110)0,8 %

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

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

  • Rheological Properties
    Flowability (1mm Thickness | AKRO)100 mm

    Flowability (2mm Thickness | AKRO)280 mm

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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