7075 Aluminum vs. ECO Rubber
7075 aluminum and ECO rubber belong to fundamentally different material chemistries. 7075 aluminum is a metal, while ECO rubber is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.
For each property being compared, the top bar is 7075 aluminum and the bottom bar is ECO rubber.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 0.0075 |
| Elongation at Break, % | 1.8 to 12 | |
| 440 |
| Poisson's Ratio | 0.32 | |
| 0.49 |
| Shear Modulus, GPa | 26 | |
| 2.5 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 590 | |
| 16 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 200 | |
| 130 |
| Thermal Expansion, µm/m-K | 23 | |
| 650 |
Otherwise Unclassified Properties
| Density, g/cm3 | 3.0 | |
| 1.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 0.0029 |
| Stiffness to Weight: Bending, points | 46 | |
| 4.5 |
| Strength to Weight: Axial, points | 22 to 54 | |
| 3.0 |
| Strength to Weight: Bending, points | 28 to 52 | |
| 9.5 |