3003 Aluminum vs. PET
3003 aluminum and PET belong to fundamentally different material chemistries. 3003 aluminum is a metal, while PET is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 material properties with values for both materials. Properties with values for just one material (29, in this case) are not shown.
For each property being compared, the top bar is 3003 aluminum and the bottom bar is PET.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 3.5 to 11 |
| Elongation at Break, % | 1.1 to 28 | |
| 2.5 to 70 |
| Tensile Strength: Ultimate (UTS), MPa | 110 to 240 | |
| 60 to 140 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 180 | |
| 80 |
| Melting Onset (Solidus), °C | 640 | |
| 260 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 1000 to 1150 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.8 | |
| 1.4 to 1.6 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 1.2 to 4.4 |
| Stiffness to Weight: Bending, points | 50 | |
| 32 to 54 |
| Strength to Weight: Axial, points | 11 to 24 | |
| 12 to 27 |
| Strength to Weight: Bending, points | 18 to 30 | |
| 25 to 41 |