Dry 50% Glass Fiber (50 GF) PA 4/6
Dry 50 GF PA 4/6 is a grade of PA 4/6. It has the highest strength and lowest ductility compared to the other variants of PA 4/6. The graph bars on the material properties cards below compare dry 50 GF PA 4/6 to: polyamide plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
16 GPa 2.3 x 106 psi
Elongation at Break
2.5 %
Flexural Modulus
14 GPa 2.0 x 106 psi
Flexural Strength
350 MPa 51 x 103 psi
Tensile Strength: Ultimate (UTS)
250 MPa 36 x 103 psi
Thermal Properties
Glass Transition Temperature
75 °C 170 °F
Heat Deflection Temperature At 1.82 MPa (264 psi)
290 °C 550 °F
Heat Deflection Temperature At 455 kPa (66 psi)
290 °C 550 °F
Melting Onset (Solidus)
300 °C 560 °F
Thermal Expansion
0.3 µm/m-K
Vicat Softening Temperature
290 °C 550 °F
Electrical Properties
Dielectric Constant (Relative Permittivity) At 1 Hz
4.3
Dielectric Constant (Relative Permittivity) At 1 MHz
4.0
Dielectric Strength (Breakdown Potential)
30 kV/mm 1.2 V/mil
Electrical Resistivity Order of Magnitude
12 10x Ω-m
Otherwise Unclassified Properties
Density
1.6 g/cm3 100 lb/ft3
Limiting Oxygen Index (LOI)
22 %
Water Absorption After 24 Hours
1.9 %
Water Absorption At Saturation
6.8 %
Common Calculations
Stiffness to Weight: Axial
5.5 points
Stiffness to Weight: Bending
52 points
Strength to Weight: Axial
43 points
Strength to Weight: Bending
54 points
Followup Questions
Further Reading
Reinforced Plastics Durability, Geoffrey Pritchard (editor), 1999
SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000
Modern Plastics Handbook, Charles A. Harper (editor), 1999
Plastics Materials, 7th ed., J. A. Brydson, 1999