7075 Aluminum vs. PTFE
7075 aluminum and PTFE belong to fundamentally different material chemistries. 7075 aluminum is a metal, while PTFE is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (31, in this case) are not shown.
For each property being compared, the top bar is 7075 aluminum and the bottom bar is PTFE.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 3.0 | |
| 2.1 to 2.3 |
| Elongation at Break, % | 1.8 to 12 | |
| 75 to 300 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 260 to 270 |
| Melting Onset (Solidus), °C | 480 | |
| 330 to 340 |
| Strength to Weight: Axial, points | 22 to 54 | |
| 1.7 to 3.2 |
| Strength to Weight: Bending, points | 28 to 52 | |
| 5.7 to 8.7 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 590 | |
| 13 to 25 |
| Thermal Conductivity, W/m-K | 130 | |
| 0.24 to 0.65 |
| Thermal Expansion, µm/m-K | 23 | |
| 110 to 120 |