Dry PA 11
Dry PA 11 is a grade of PA 11. The graph bars on the material properties cards below compare dry PA 11 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
80 MPa 12 x 103 psi
Elastic (Young's, Tensile) Modulus
1.3 GPa 0.19 x 106 psi
Elongation at Break
130 %
Flexural Modulus
1.2 GPa 0.18 x 106 psi
Flexural Strength
46 MPa 6.7 x 103 psi
Impact Strength: Notched Izod
140 J/m 2.5 ft-lb/in
Rockwell R Hardness
110
Tensile Strength: Ultimate (UTS)
51 MPa 7.4 x 103 psi
Thermal Properties
Glass Transition Temperature
190 °C 380 °F
Heat Deflection Temperature At 1.82 MPa (264 psi)
83 °C 180 °F
Heat Deflection Temperature At 455 kPa (66 psi)
100 °C 220 °F
Melting Onset (Solidus)
180 °C 360 °F
Specific Heat Capacity
1740 J/kg-K 0.42 BTU/lb-°F
Thermal Conductivity
0.28 W/m-K 0.16 BTU/h-ft-°F
Thermal Expansion
97 µm/m-K
Electrical Properties
Dielectric Constant (Relative Permittivity) At 1 Hz
3.3
Dielectric Strength (Breakdown Potential)
17 kV/mm 0.66 V/mil
Electrical Dissipation At 1 Hz
0.030
Electrical Resistivity Order of Magnitude
11 10x Ω-m
Otherwise Unclassified Properties
Density
1.0 g/cm3 64 lb/ft3
Limiting Oxygen Index (LOI)
29 %
Water Absorption After 24 Hours
0.4 %
Common Calculations
Stiffness to Weight: Axial
0.71 points
Stiffness to Weight: Bending
36 points
Strength to Weight: Axial
14 points
Strength to Weight: Bending
30 points
Thermal Diffusivity
0.16 mm2/s
Thermal Shock Resistance
29 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