T9 GF 15 S1 black (7820)PPA-I GF15

AKROMID® T9 GF 15 S1 black (7820) is a 15% glass fibre reinforced, cold impact strength polyphthalamide with medium stiffness and strength, as well as high chemical resistance. The compound is based on PA9T and has lower moisture uptake than conventional PA6T variants. This leads to a significantly higher consistency of the glass transition temperature and higher strength at elevated temperatures especially in conditioned state.


heat stabilised 160








Mechanical Properties

Tensile modulus

ISO 527-2

1 mm/min | d.a.m.
5000 MPa

Tensile stress at break

ISO 527-2

5 mm/min | d.a.m.
120 MPa

Tensile strain at break

ISO 527-2

5 mm/min | d.a.m.
4 %

Charpy impact strength

ISO 179-1/1eU

23°C | d.a.m.
30°C | d.a.m.
73 kJ/m²
55 kJ/m²

Charpy notched impact strength

ISO 179-1/1eA

23°C | d.a.m.
30°C | d.a.m.
11 kJ/m²
5 kJ/m²

Thermal Properties

Temperature of deflection under load HDT/A

ISO 75

1,8 MPa
249 °C

Temperature of deflection under load HDT/C

ISO 75

8 MPa
122 °C

Glass transition temperature

ISO 11357-2

DSC, 2nd heating
125 °C

Melting temperature

ISO 11357-3

DSC, 10K/min
305 °C


Burning rate

UL 94

1,6 mm Wall thickness
HB Class


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.