MakeItFrom.com
Menu (ESC)

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