PA6.6 – Polyamide 6.6 PA66
AKROMID® A3 6 LT black (7579)
AKROMID® A3 6 LT black (7579) is an unreinforced, inorganic high temperature stabilised and laser-transparent polyamide 6.6
Components and fixtures in the automotive industry.
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.
|Drying time||2 - 4 h|
|Drying temperature (τ ≤ -30°C)||80°C|
|Processing moisture||0,02 - 0,1%|
|Feed section||60 - 80°C|
|Temperature zone 1 - Zone 4||260 - 300°C|
|Nozzle temperature||270 - 310°C|
|Melt temperature||270 - 300°C|
|Mold temperature||40 - 90°C|
|Holding pressure, spec.||300 - 800 bar|
|Back pressure, spec.||50 - 150 bar|
|Injection speed||medium to high|
|Screw speed||8 - 15 m/min|
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 3500 MPa conditioned 1450 MPa
Stress at yield (50 mm/min | ISO 527-2) d.a.m. 90 MPa conditioned 55 MPa
Strain at yield (50 mm/min | ISO 527-2) d.a.m. 5 %
Stress at break (50 mm/min | ISO 527-2) d.a.m. 10 MPa conditioned 30 MPa
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. n.b. conditioned n.b.
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 4,5 kJ/m² conditioned 11 kJ/m²
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 70 °C
Temperature of deflection under load HDT/B (0,45 MPa | ISO 75) 220 °C
Melting temperature (DSC, 10K/min | DIN EN 11357-1) 262 °C
Burning rate (UL 94) 1,6mm Wall thickness V-2 Class
Burning rate (<100 mm/min) (> 1 mm Thickness | FMVSS 302) +
Density (23°C | ISO 1183) 1,14 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 2,5 %
Molding shrinkage (flow | ISO 294-4) 1,1 %
Molding shrinkage (transverse | ISO 294-4) 1,5 %
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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