PA6.6 – Polyamide 6.6 PA66 GF50
AKROMID® A3 GF 50 HU black (6303)
AKROMID® A3 GF 50 HU black (6303) is a 50% glass fibre reinforced, heat stabilised polyamide 6.6 with very high rigidity and strength, listet at UL in all colors
Typical applications
Components in mechanical engineering and in the automotive industry
Regulatory
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. 18000 MPa conditioned 12700 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 255 MPa conditioned 180 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,8 % conditioned 3,5 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 105 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 20 kJ/m²
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Thermal Properties
RTI electrical 0,4mm Wall thickness (UL 746B) 125 °C
RTI electrical 0,8mm Wall thickness (UL 746B) 125 °C
RTI electrical 1,6mm Wall thickness (UL 746B) 130 °C
RTI electrical 3,2mm Wall thickness (UL 746B) 130 °C
RTI impact 0,8mm Wall thickness (UL 746B) 120 °C
RTI impact 1,6mm Wall thickness (UL 746B) 120 °C
RTI impact 3,2mm Wall thickness (UL 746B) 120 °C
RTI strength 0,8mm Wall thickness (UL 746B) 130 °C
RTI strength 1,6mm Wall thickness (UL 746B) 130 °C
RTI strength 3,2mm Wall thickness (UL 746B) 130 °C
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 260 °C
Temperature of deflection under load HDT/B (0,45 MPa | ISO 75) 260 °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) 0,14 1,0E-4/K
Coefficent of linear thermal expansion, transverse (23°C bis 80°C | ISO 11359-1/2) 1,25 1,0E-4/K
Temperature index for 50% loss of tensile strength after 5.000h (5.000 h | IEC 60216) 155 °C
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Flammability
Burning rate (UL 94) 0,4mm Wall thickness HB Class 0,8mm Wall thickness HB Class 1,6mm Wall thickness HB Class 3,2mm Wall thickness HB Class
GWFI (IEC 60695-2-12) 0,8mm Wall thickness 700 °C 1,6mm Wall thickness 700 °C 3,2mm Wall thickness 700 °C
HWI (UL 746A) 0,4mm Wall thickness 4 PLC 0,8mm Wall thickness 4 PLC 1,6mm Wall thickness 4 PLC 3,2mm Wall thickness 4 PLC
HAI (UL 746A) 0,4mm Wall thickness 0 PLC 0,8mm Wall thickness 0 PLC 1,6mm Wall thickness 0 PLC 3,2mm Wall thickness 0 PLC
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General properties
Density (23°C | ISO 1183) 1,56 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 1,3-1,5 %
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.
Notes
Please find out about our new grade: A3 GF 50 HU black (6666)
“conditioned” test values = conditioned, measured on test specimens stored according to DIN EN ISO 1110
“d.a.m.” = dry as moulded test values = residual moisture content <0.1%
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