PBT vs. PTT
Both PBT and PTT are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is PBT and the bottom bar is PTT.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 2.7 to 8.7 | |
| 2.5 |
| Elongation at Break, % | 2.5 to 43 | |
| 60 |
| Flexural Modulus, GPa | 2.6 to 9.1 | |
| 2.8 |
| Flexural Strength, MPa | 79 to 210 | |
| 100 |
| Tensile Strength: Ultimate (UTS), MPa | 58 to 140 | |
| 60 |
Thermal Properties
| Melting Onset (Solidus), °C | 230 | |
| 230 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 1.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.1 to 3.2 | |
| 1.0 |
| Stiffness to Weight: Bending, points | 35 to 45 | |
| 34 |
| Strength to Weight: Axial, points | 12 to 25 | |
| 13 |
| Strength to Weight: Bending, points | 25 to 38 | |
| 26 |