PA6.6 – Polyamide 6.6 PA66-I
AKROMID® A3 1 S3 black (1139)
AKROMID® A3 1 S3 black (1139) is an unreinforced, heat stabilised and dry impact resistant polyamide 6.6
Typical applications
Connecting and fixing systems, used at elevated temperatures in the automotive and electro industry.
Processing information
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.
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Drying time | 2 - 4 h |
| Drying temperature (τ ≤ -30°C) | 80°C | |
| Processing moisture | 0,02 - 0,1% | |
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Feed section | 60 - 80°C |
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Temperature zone 1 - Zone 4 | 260 - 300°C |
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Nozzle temperature | 270 - 310°C |
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Melt temperature | 270 - 300°C |
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Mold temperature | 40 - 90°C |
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Holding pressure, spec. | 300 - 800 bar |
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Back pressure, spec. | 50 - 150 bar |
| Injection speed | medium to high | |
| Screw speed | 8 - 15 m/min | |
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Mechanical Properties
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 2700 MPa conditioned 1300 MPa
Stress at yield (50 mm/min | ISO 527-2) d.a.m. 63 MPa conditioned 45 MPa
Strain at yield (50 mm/min | ISO 527-2) d.a.m. 5,6 %
Strain at break (50 mm/min | ISO 527-2) d.a.m. > 35 % conditioned > 100 %
Flexural modulus (2 mm/min | ISO 178) d.a.m. 2500 MPa
Flexural strength (2 mm/min | ISO 178) d.a.m. 90 MPa
Flexural strain at break (2 mm/min | ISO 178) d.a.m. 7,5 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. n.b. conditioned n.b.
Charpy impact strength (-30°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. 17 kJ/m² conditioned 95 kJ/m²
Charpy notched impact strength (-30°C | ISO 179-1/1eA) d.a.m. 10 kJ/m² conditioned 13 kJ/m²
Izod-notched impact strength (23°C | ISO 180/1A) d.a.m. 15 kJ/m²
Izod-notched impact strength (-20°C | ISO 180/1A) d.a.m. 12 kJ/m²
Izod-notched impact strength (-40°C | ISO 180/1A) d.a.m. 12 kJ/m²
Shore D Hardness (23°C | DIN 53 505) d.a.m. 75
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Thermal Properties
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) 213 °C
Melting temperature (DSC, 10K/min | DIN EN 11357-1) 262 °C
Coefficent of linear thermal expansion, parallel (23°C bis 80°C | ISO 11359-1/2) 0,87 1,0E-4/K
Coefficent of linear thermal expansion, transverse (23°C bis 80°C | ISO 11359-1/2) 0,87 1,0E-4/K
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Flammability
Burning rate (UL 94) 1,6mm Wall thickness HB Class
GWFI (IEC 60695-2-12) 1,6mm Wall thickness 650 °C
GWIT (IEC 60695-2-13) 1,6mm Wall thickness 675 °C
Burning rate (<100 mm/min) (> 1 mm Thickness | FMVSS 302) +
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General properties
Density (23°C | ISO 1183) 1,1 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 2,1 %
Molding shrinkage (flow | ISO 294-4) 1,3 - 1,5 %
Molding shrinkage (transverse | ISO 294-4) 1,5 - 1,7 %
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Electrical Properties
Volume resistivity (IEC 60093) d.a.m. 1,0E+15 Ohm x cm
Surface resistivity (acc. to IEC 60093) d.a.m. 1,0E+14 Ohm
Comparative tracking index (Test liquid A | IEC 60112) 600 V
Disclaimer
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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