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