PEI vs. HMWPE
Both PEI and HMWPE are thermoplastics. There are 7 material properties with values for both materials. Properties with values for just one material (24, in this case) are not shown.
For each property being compared, the top bar is PEI and the bottom bar is HMWPE.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 0.95 |
| Elastic (Young's, Tensile) Modulus, GPa | 3.4 to 5.6 | |
| 0.7 |
| Stiffness to Weight: Axial, points | 1.5 to 2.1 | |
| 0.41 |
| Stiffness to Weight: Bending, points | 39 | |
| 31 |
| Strength to Weight: Axial, points | 24 to 30 | |
| 5.0 |
| Strength to Weight: Bending, points | 40 to 44 | |
| 16 |
| Tensile Strength: Ultimate (UTS), MPa | 110 to 160 | |
| 17 |