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||0 - 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|
|Melting temperature||280 - 300°C|
|Mold temperature||40 - 80°C|
|Holding pressure, spec.||300 - 800 bar|
|Back pressure, spec.||50 - 150 bar|
|Injection speed||medium to high|
|Screw speed||8 - 15 m/min|
- Mechanical Properties
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. kJ/m² Charpy impact strength (-30°C | ISO 179-1/1eU) d.a.m. n.b. kJ/m² Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. > 70 kJ/m²
- Thermal Properties
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) +
- General properties
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 %
- Electrical Properties
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.
You have questions about our products?
With a worldwide network of plastics distribution experts, we can provide you with support anywhere in the world. Talk to one of our specialists to find out more.CONTACT US NOW