PSU vs. PPS
Both PSU and PPS are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is PSU and the bottom bar is PPS.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 95 to 180 | |
| 95 to 160 |
| Elongation at Break, % | 2.0 to 52 | |
| 2.5 to 11 |
| Flexural Modulus, GPa | 2.7 to 14 | |
| 13 to 17 |
| Flexural Strength, MPa | 110 to 200 | |
| 120 to 190 |
| Impact Strength: Notched Izod, J/m | 59 to 100 | |
| 21 to 80 |
| Tensile Strength: Ultimate (UTS), MPa | 70 to 140 | |
| 75 to 190 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 180 to 200 | |
| 130 to 260 |
| Specific Heat Capacity, J/kg-K | 910 to 1000 | |
| 910 to 1000 |
| Thermal Expansion, µm/m-K | 25 to 57 | |
| 20 to 45 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.2 to 1.6 | |
| 1.3 to 1.7 |
| Water Absorption At Saturation, % | 0.4 to 0.6 | |
| 0.060 to 0.1 |
Common Calculations
| Strength to Weight: Axial, points | 16 to 25 | |
| 16 to 37 |
| Strength to Weight: Bending, points | 30 to 40 | |
| 30 to 52 |