PAS vs. PBT
Both PAS and PBT are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is PAS and the bottom bar is PBT.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 2.7 | |
| 2.7 to 8.7 |
| Elongation at Break, % | 40 | |
| 2.5 to 43 |
| Flexural Modulus, GPa | 2.8 | |
| 2.6 to 9.1 |
| Flexural Strength, MPa | 110 | |
| 79 to 210 |
| Tensile Strength: Ultimate (UTS), MPa | 83 | |
| 58 to 140 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 200 | |
| 4.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 | |
| 1.3 to 1.5 |
| Limiting Oxygen Index (LOI), % | 33 | |
| 20 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.1 | |
| 1.1 to 3.2 |
| Stiffness to Weight: Bending, points | 34 | |
| 35 to 45 |
| Strength to Weight: Axial, points | 17 | |
| 12 to 25 |
| Strength to Weight: Bending, points | 31 | |
| 25 to 38 |