PA6.6 – Polyamide 6.6 PA66-I
AKROMID® A3 S1 natural (7031)
AKROMID® A3 S1 natural (7031) is an unreinforced, cold impact modified polyamide 6.6 with light inherent color
Connectors and fixtures for the automotive electro and furniture industry, if high impact resistance at low temperatures is required.
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. 1800 MPa
Stress at yield (50 mm/min | ISO 527-2) d.a.m. 46 MPa
Strain at break (50 mm/min | ISO 527-2) d.a.m. > 50 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. n.b.
Charpy impact strength (-30°C | ISO 179-1/1eU) d.a.m. n.b.
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. > 70 kJ/m²
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 60 °C
Temperature of deflection under load HDT/B (0,45 MPa | ISO 75) 150 °C
Melting temperature (DSC, 10K/min | DIN EN 11357-1) 262 °C
Burning rate (UL 94) 1,6mm Wall thickness HB Class
Burning rate (<100 mm/min) (> 1 mm Thickness | FMVSS 302) +
Density (23°C | ISO 1183) 1,07 g/cm³
Molding shrinkage (flow | ISO 294-4) 1,3 - 1,5 %
Molding shrinkage (transverse | ISO 294-4) 1,5 - 1,7 %
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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