PBT vs. PP Copolymer
Both PBT and PP copolymer are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is PBT and the bottom bar is PP copolymer.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 2.7 to 8.7 | |
| 0.9 to 1.1 |
| Elongation at Break, % | 2.5 to 43 | |
| 12 |
| Flexural Modulus, GPa | 2.6 to 9.1 | |
| 1.3 |
| Flexural Strength, MPa | 79 to 210 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 58 to 140 | |
| 23 to 33 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 4.0 | |
| 50 to 100 |
| Heat Deflection Temperature At 455 kPa (66 psi), °C | 160 | |
| 82 to 98 |
| Melting Onset (Solidus), °C | 230 | |
| 150 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 0.9 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.1 to 3.2 | |
| 0.56 to 0.68 |
| Stiffness to Weight: Bending, points | 35 to 45 | |
| 36 to 38 |
| Strength to Weight: Axial, points | 12 to 25 | |
| 7.1 to 10 |
| Strength to Weight: Bending, points | 25 to 38 | |
| 20 to 25 |