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Dry PA 6/12

Dry PA 6/12 is a grade of PA 6/12. The graph bars on the material properties cards below compare dry PA 6/12 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

Compressive (Crushing) Strength

90 MPa 13 x 103 psi

Elastic (Young's, Tensile) Modulus

2.2 GPa 0.32 x 106 psi

Elongation at Break

120 %

Flexural Modulus

2.2 GPa 0.32 x 106 psi

Flexural Strength

64 MPa 9.2 x 103 psi

Impact Strength: Notched Izod

57 J/m 1.1 ft-lb/in

Rockwell M Hardness

78

Rockwell R Hardness

110

Tensile Strength: Ultimate (UTS)

58 MPa 8.4 x 103 psi

Thermal Properties

Glass Transition Temperature

210 °C 410 °F

Heat Deflection Temperature At 1.82 MPa (264 psi)

80 °C 180 °F

Heat Deflection Temperature At 455 kPa (66 psi)

180 °C 360 °F

Maximum Temperature: Decomposition

450 °C 830 °F

Melting Onset (Solidus)

210 °C 400 °F

Specific Heat Capacity

1590 J/kg-K 0.38 BTU/lb-°F

Thermal Conductivity

0.22 W/m-K 0.13 BTU/h-ft-°F

Thermal Expansion

85 µm/m-K

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz

3.9

Dielectric Strength (Breakdown Potential)

16 kV/mm 0.63 V/mil

Electrical Dissipation At 1 Hz

0.020

Electrical Resistivity Order of Magnitude

13 10x Ω-m

Otherwise Unclassified Properties

Density

1.1 g/cm3 66 lb/ft3

Limiting Oxygen Index (LOI)

25 %

Water Absorption After 24 Hours

0.25 %

Water Absorption At Saturation

3.0 %

Common Calculations

Stiffness to Weight: Axial

1.2 points

Stiffness to Weight: Bending

41 points

Strength to Weight: Axial

15 points

Strength to Weight: Bending

31 points

Thermal Diffusivity

0.13 mm2/s

Thermal Shock Resistance

22 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

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015