PET vs. ABS
Both PET and ABS are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is PET and the bottom bar is ABS.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 3.5 to 11 | |
| 2.0 to 2.6 |
| Elongation at Break, % | 2.5 to 70 | |
| 3.5 to 50 |
| Flexural Modulus, GPa | 8.3 to 14 | |
| 2.1 to 7.6 |
| Impact Strength: Notched Izod, J/m | 43 to 85 | |
| 70 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 60 to 140 | |
| 37 to 110 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 3.7 | |
| 3.1 to 3.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 1.0 to 1.4 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.2 to 4.4 | |
| 0.79 to 1.4 |
| Stiffness to Weight: Bending, points | 32 to 54 | |
| 30 to 44 |
| Strength to Weight: Axial, points | 12 to 27 | |
| 10 to 22 |
| Strength to Weight: Bending, points | 25 to 41 | |
| 24 to 37 |