PEI vs. SAN
Both PEI and SAN are thermoplastics. There are 8 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.
For each property being compared, the top bar is PEI and the bottom bar is SAN.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 1.1 to 1.4 |
| Elongation at Break, % | 3.0 to 34 | |
| 2.5 |
| Flexural Modulus, GPa | 3.4 to 5.9 | |
| 3.8 to 13 |
| Impact Strength: Notched Izod, J/m | 55 to 110 | |
| 23 to 60 |
| Specific Heat Capacity, J/kg-K | 1050 to 1220 | |
| 1070 to 1380 |
| Strength to Weight: Axial, points | 24 to 30 | |
| 19 to 25 |
| Strength to Weight: Bending, points | 40 to 44 | |
| 36 to 40 |
| Tensile Strength: Ultimate (UTS), MPa | 110 to 160 | |
| 74 to 130 |