Dry 30% Glass Fiber (30 GF) PA 4/6
Dry 30 GF PA 4/6 is a grade of PA 4/6. It has the second lowest ductility compared to the other variants of PA 4/6. The graph bars on the material properties cards below compare dry 30 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
10 GPa 1.5 x 106 psi
Elongation at Break
4.0 %
Flexural Modulus
9.0 GPa 1.3 x 106 psi
Flexural Strength
300 MPa 44 x 103 psi
Tensile Strength: Ultimate (UTS)
210 MPa 30 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
0.4 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
1.4 g/cm3 88 lb/ft3
Limiting Oxygen Index (LOI)
22 %
Water Absorption After 24 Hours
2.7 %
Water Absorption At Saturation
9.5 %
Common Calculations
Stiffness to Weight: Axial
3.9 points
Stiffness to Weight: Bending
51 points
Strength to Weight: Axial
41 points
Strength to Weight: Bending
56 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