T5 GF 50 natural (7834)PPA GF50

AKROMID® T5 GF 50 natural (7834) is a 50% glass fibre reinforced polyphthalamide. It is characterised by its very high stiffness and strength, even at elevated temperatures up to 120°C. Due to its low moisture absorption, the mechanical properties remain nearly unchanged even in conditioned state. Not only the good creep resistance, but also the hydrolysis and chemical resistance complement the property profile and make it the material of your choice for under the hood applications and connectors with special strength requirements.


heat stabilised 160
reduced moisture
hydrolysis / chemically stabilised
metal substitution








Mechanical Properties

Tensile modulus

ISO 527-2

1 mm/min | d.a.m.
1 mm/min | conditioned
18500 MPa
18500 MPa

Tensile stress at break

ISO 527-2

5 mm/min | d.a.m.
5 mm/min | conditioned
275 MPa
275 MPa

Tensile strain at break

ISO 527-2

5 mm/min | d.a.m.
5 mm/min | conditioned
2,1 %
2,1 %

Charpy impact strength

ISO 179-1/1eU

23°C | d.a.m.
95 kJ/m²

Charpy notched impact strength

ISO 179-1/1eA

23°C | d.a.m.
14 kJ/m²

Thermal Properties

Temperature of deflection under load HDT/A

ISO 75

1,8 MPa
280 °C

Temperature of deflection under load HDT/C

ISO 75

8 MPa
235 °C

Glass transition temperature

ISO 11357-2

DSC, 2nd heating
135 °C

Melting temperature

ISO 11357-3

DSC, 10K/min
325 °C


Burning rate

UL 94

1,6 mm Wall thickness
HB Class

General properties


ISO 1183

1,65 g/cm³

Humidity absorption

ISO 1110

70°C, 62% r.H.
0,8 %

Molding shrinkage

ISO 294-4

0,1 - 0,3 %
0,4 - 0,6 %


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.