PEEK vs. EVA
Both PEEK and EVA are thermoplastics. There are 13 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 PEEK and the bottom bar is EVA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 4.0 to 24 | |
| 0.015 to 0.080 |
| Elongation at Break, % | 1.6 to 43 | |
| 300 to 800 |
| Tensile Strength: Ultimate (UTS), MPa | 97 to 200 | |
| 3.0 to 35 |
Thermal Properties
| Maximum Temperature: Decomposition, °C | 570 | |
| 450 |
| Melting Onset (Solidus), °C | 340 | |
| 55 to 95 |
| Specific Heat Capacity, J/kg-K | 1390 to 1700 | |
| 1400 |
| Thermal Conductivity, W/m-K | 0.25 to 0.93 | |
| 0.34 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 0.93 to 1.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.5 to 10 | |
| 0.0087 to 0.048 |
| Stiffness to Weight: Bending, points | 36 to 73 | |
| 8.6 to 15 |
| Strength to Weight: Axial, points | 20 to 41 | |
| 0.87 to 10 |
| Strength to Weight: Bending, points | 36 to 55 | |
| 4.8 to 26 |
| Thermal Diffusivity, mm2/s | 0.1 to 0.51 | |
| 0.25 to 0.26 |