Dry Unfilled PA 4/6
Dry unfilled PA 4/6 is a grade of PA 4/6. It has the second highest ductility compared to the other variants of PA 4/6. The graph bars on the material properties cards below compare dry unfilled 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
3.3 GPa 0.48 x 106 psi
Elongation at Break
40 %
Flexural Modulus
3.0 GPa 0.44 x 106 psi
Flexural Strength
150 MPa 22 x 103 psi
Tensile Strength: Yield (Proof)
100 MPa 15 x 103 psi
Thermal Properties
Glass Transition Temperature
75 °C 170 °F
Heat Deflection Temperature At 1.82 MPa (264 psi)
190 °C 370 °F
Heat Deflection Temperature At 455 kPa (66 psi)
280 °C 540 °F
Melting Onset (Solidus)
300 °C 560 °F
Thermal Expansion
1.0 µm/m-K
Vicat Softening Temperature
290 °C 550 °F
Electrical Properties
Dielectric Constant (Relative Permittivity) At 1 Hz
3.9
Dielectric Constant (Relative Permittivity) At 1 MHz
3.6
Dielectric Strength (Breakdown Potential)
25 kV/mm 1.0 V/mil
Electrical Resistivity Order of Magnitude
13 10x Ω-m
Otherwise Unclassified Properties
Density
1.2 g/cm3 74 lb/ft3
Limiting Oxygen Index (LOI)
27 %
Water Absorption After 24 Hours
3.8 %
Water Absorption At Saturation
14 %
Common Calculations
Resilience: Unit (Modulus of Resilience)
1520 kJ/m3
Stiffness to Weight: Axial
1.6 points
Stiffness to Weight: Bending
42 points
Followup Questions
Further Reading
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