PA6.6 – Polyamide 6.6 PA66 GF50
AKROMID® A3 GF 50 4 black (7282)
AKROMID® A3 GF 50 4 black (7282) is a 50% glass fibre reinforced, hydrolysis/chemical stabilised polyamide 6.6 with very high rigidity and strength
Typical applications
Functional parts in the heating- and cooling system in the automotive 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 | 0 - 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 | 280 - 300°C |
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Mold temperature | 80 - 100°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. 17000 MPa conditioned 13000 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 250 MPa conditioned 180 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 3,0 % conditioned 4,0 %
Flexural modulus (2 mm/min | ISO 178) d.a.m. 15500 MPa
Flexural strength (2 mm/min | ISO 178) d.a.m. 380 MPa
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 110 kJ/m² conditioned 115 kJ/m²
Charpy impact strength (-30°C | ISO 179-1/1eU) d.a.m. 110 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 20 kJ/m² conditioned 25 kJ/m²
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Thermal Properties
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 260 °C
Melting temperature (DSC, 10K/min | DIN EN 11357-1) 262 °C
Temperature index for 50% loss of tensile strength after 5.000h (5.000 h | IEC 60216) 160 °C
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General properties
Density (23°C | ISO 1183) 1,57 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 1,3-1,5 %
Water absorption 23°C saturated (23°C, saturated | ISO 62) 3,7-4,3 %
Molding shrinkage (flow | ISO 294-4) 0,1-0,3 %
Molding shrinkage (transverse | ISO 294-4) 0,5-0,7 %
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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