PET vs. PTT
Both PET and PTT are thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is PET and the bottom bar is PTT.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 1.3 |
| Elastic (Young's, Tensile) Modulus, GPa | 3.5 to 11 | |
| 2.5 |
| Elongation at Break, % | 2.5 to 70 | |
| 60 |
| Flexural Modulus, GPa | 8.3 to 14 | |
| 2.8 |
| Melting Onset (Solidus), °C | 260 | |
| 230 |
| Stiffness to Weight: Axial, points | 1.2 to 4.4 | |
| 1.0 |
| Stiffness to Weight: Bending, points | 32 to 54 | |
| 34 |
| Strength to Weight: Axial, points | 12 to 27 | |
| 13 |
| Strength to Weight: Bending, points | 25 to 41 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 60 to 140 | |
| 60 |