PA6.6 – Polyamide 6.6 PA66 GF50
AKROMID® A28 GF 50 1 GIT black (5029)AKROMID® A28 GF 50 1 GIT black (5029) is a 50% glass fibre reinforced, heat stabilised, easy flowing polyamide 6.6. It is characterised by very high stiffness and strength and shows an excellent surface. Furthermore, the material is designed for gas injection technology.
Properties
Tensile Modulus Tensile Strength Impact StrengthFeatures
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Mechanical Properties
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 17500 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 270 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 3 %
Flexural modulus (2 mm/min | ISO 178) d.a.m. 16800 MPa
Flexural strength (2 mm/min | ISO 178) d.a.m. 380 MPa
Flexural strain at break (2 mm/min | ISO 178) d.a.m. 3 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 100 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 20 kJ/m²
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Thermal Properties
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 260 °C
Temperature of deflection under load HDT/C (8 MPa | ISO 75) 225 °C
Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3) 260 °C
Coefficent of linear thermal expansion, parallel (23°C bis 80°C | ISO 11359-1/2) 0,15 1,0E-4/K
Coefficent of linear thermal expansion, transverse (23°C bis 80°C | ISO 11359-1/2) 0,78 1,0E-4/K
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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) 1,57 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 1,1-1,3 %
Molding shrinkage (flow | ISO 294-4) 0,1 - 0,3 %
Molding shrinkage (transverse | ISO 294-4) 0,5 - 0,7 %
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 | |
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.
