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PA 4/6 vs. PEI

Both PA 4/6 and PEI are thermoplastics. There are 8 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown.

For each property being compared, the top bar is PA 4/6 and the bottom bar is PEI.

Metric UnitsUS Customary Units

Material Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 3.6 to 4.7
3.2 to 3.7
Dielectric Strength (Breakdown Potential), kV/mm 15 to 30
30 to 33
Elastic (Young's, Tensile) Modulus, GPa 1.0 to 16
3.4 to 5.6
Electrical Resistivity Order of Magnitude, 10x Ω-m 7.0 to 13
14 to 15
Elongation at Break, % 2.5 to 50
3.0 to 34
Flexural Modulus, GPa 0.9 to 14
3.4 to 5.9
Flexural Strength, MPa 50 to 350
140 to 210
Tensile Strength: Ultimate (UTS), MPa 120 to 250
110 to 160