PEI vs. PA 6/6
Both PEI and PA 6/6 are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.
For each property being compared, the top bar is PEI and the bottom bar is PA 6/6.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 3.4 to 5.6 | |
| 1.6 to 23 |
| Elongation at Break, % | 3.0 to 34 | |
| 2.8 to 46 |
| Flexural Modulus, GPa | 3.4 to 5.9 | |
| 1.3 to 19 |
| Flexural Strength, MPa | 140 to 210 | |
| 80 to 260 |
| Tensile Strength: Ultimate (UTS), MPa | 110 to 160 | |
| 60 to 240 |
Thermal Properties
| Glass Transition Temperature, °C | 210 | |
| 50 |
| Maximum Temperature: Autoignition, °C | 530 | |
| 460 |
| Maximum Temperature: Decomposition, °C | 530 | |
| 410 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 3.2 to 3.7 | |
| 3.0 to 4.3 |
| Dielectric Strength (Breakdown Potential), kV/mm | 30 to 33 | |
| 25 to 30 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 14 to 15 | |
| 10 to 13 |
Otherwise Unclassified Properties
| Limiting Oxygen Index (LOI), % | 47 to 50 | |
| 26 |