PA6.6 – Polyamide 6.6 PA66-I
AKROMID® A3 5 S3 black (7333)AKROMID® A3 5 S3 black (7333) is an unreinforced, impact modified Polyamide 66. It is characterised by a medium dry impact strength whilst maintaining good flowability and low emission. Furthermore, the material is heat stabilised and therefore perfectly suitable for connecting and fixing systems which are used at elevated temperatures in the automotive and electro industry. Its good flowability qualifies the material for processing in multi-cavity moulds.
Properties
Tensile Modulus Tensile Strength Impact StrengthFeatures
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Mechanical Properties
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 2400 MPa conditioned 1200 MPa
Stress at yield (50 mm/min | ISO 527-2) d.a.m. 65 MPa conditioned 50 MPa
Strain at break (50 mm/min | ISO 527-2) d.a.m. >25 % conditioned >60 %
Flexural modulus (2 mm/min | ISO 178) d.a.m. 2400 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. 12 kJ/m² conditioned 28 kJ/m²
Charpy notched impact strength (-40°C | ISO 179-1/1eA) d.a.m. 8 kJ/m²
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Thermal Properties
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 62 °C
Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3) 262 °C
Temperature index for 50% loss of tensile strength after 5.000h (5.000 h | IEC 60216) 129 °C
Temperature index for 50% loss of tensile strength after 20.000h (20.000 Std. | IEC 60216) 110 °C
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Flammability
Burning rate (UL 94) 1,6mm Wall thickness HB Class
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 Ω · cm
Volume resistivity (DIN EN 62631-3-1) d.a.m. 1,0E+15 Ω · cm
Surface resistivity (DIN EN 62631-3-2) d.a.m. 1,0E+14 Ω
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 | |
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.
