PBI vs. PTT
PBI belongs to the thermoset plastics classification, while PTT belongs to the thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.
For each property being compared, the top bar is PBI and the bottom bar is PTT.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.3 | |
| 1.3 |
| Elastic (Young's, Tensile) Modulus, GPa | 5.9 | |
| 2.5 |
| Elongation at Break, % | 3.0 | |
| 60 |
| Flexural Modulus, GPa | 6.5 | |
| 2.8 |
| Flexural Strength, MPa | 220 | |
| 100 |
| Stiffness to Weight: Axial, points | 2.5 | |
| 1.0 |
| Stiffness to Weight: Bending, points | 46 | |
| 34 |
| Strength to Weight: Axial, points | 34 | |
| 13 |
| Strength to Weight: Bending, points | 50 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 160 | |
| 60 |