PAI vs. PSU
Both PAI and PSU are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is PAI and the bottom bar is PSU.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 260 to 300 | |
| 95 to 180 |
| Elongation at Break, % | 3.0 to 12 | |
| 2.0 to 52 |
| Flexural Modulus, GPa | 4.0 to 6.8 | |
| 2.7 to 14 |
| Flexural Strength, MPa | 160 to 320 | |
| 110 to 200 |
| Impact Strength: Notched Izod, J/m | 45 to 140 | |
| 59 to 100 |
| Tensile Strength: Ultimate (UTS), MPa | 100 to 180 | |
| 70 to 140 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 280 | |
| 180 to 200 |
| Specific Heat Capacity, J/kg-K | 910 to 1000 | |
| 910 to 1000 |
| Thermal Expansion, µm/m-K | 15 to 34 | |
| 25 to 57 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 1.2 to 1.6 |
| Water Absorption At Saturation, % | 1.5 to 1.7 | |
| 0.4 to 0.6 |
Common Calculations
| Strength to Weight: Axial, points | 19 to 34 | |
| 16 to 25 |
| Strength to Weight: Bending, points | 33 to 49 | |
| 30 to 40 |