PBI vs. PC
PBI belongs to the thermoset plastics classification, while PC belongs to the thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is PBI and the bottom bar is PC.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 3.0 | |
| 3.5 to 110 |
| Flexural Modulus, GPa | 6.5 | |
| 2.3 to 10 |
| Flexural Strength, MPa | 220 | |
| 92 to 160 |
| Impact Strength: Notched Izod, J/m | 27 | |
| 140 to 440 |
| Tensile Strength: Ultimate (UTS), MPa | 160 | |
| 66 to 160 |
Thermal Properties
| Glass Transition Temperature, °C | 410 | |
| 150 |
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 430 | |
| 130 to 150 |
| Specific Heat Capacity, J/kg-K | 930 | |
| 1000 to 1200 |
| Thermal Expansion, µm/m-K | 23 | |
| 10 to 69 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 | |
| 1.2 to 1.4 |
Common Calculations
| Strength to Weight: Axial, points | 34 | |
| 15 to 30 |
| Strength to Weight: Bending, points | 50 | |
| 30 to 45 |