PEI vs. ASA
Both PEI and ASA are thermoplastics. There are 15 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 PEI and the bottom bar is ASA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 3.4 to 5.6 | |
| 2.6 |
| Elongation at Break, % | 3.0 to 34 | |
| 6.0 |
| Tensile Strength: Ultimate (UTS), MPa | 110 to 160 | |
| 55 |
Thermal Properties
| Glass Transition Temperature, °C | 210 | |
| 100 |
| Specific Heat Capacity, J/kg-K | 1050 to 1220 | |
| 1300 |
| Thermal Conductivity, W/m-K | 0.18 to 0.23 | |
| 0.18 |
| Thermal Expansion, µm/m-K | 20 to 53 | |
| 95 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 14 to 15 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 1.1 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.5 to 2.1 | |
| 1.3 |
| Stiffness to Weight: Bending, points | 39 | |
| 43 |
| Strength to Weight: Axial, points | 24 to 30 | |
| 14 |
| Strength to Weight: Bending, points | 40 to 44 | |
| 30 |
| Thermal Diffusivity, mm2/s | 0.11 to 0.14 | |
| 0.13 |
| Thermal Shock Resistance, points | 44 to 100 | |
| 16 |