POM-C vs. PBI
POM-C belongs to the thermoplastics classification, while PBI belongs to the thermoset plastics. There are 13 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is POM-C and the bottom bar is PBI.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 2.8 to 9.7 | |
| 5.9 |
| Elongation at Break, % | 3.0 to 65 | |
| 3.0 |
| Flexural Modulus, GPa | 2.6 to 9.0 | |
| 6.5 |
| Flexural Strength, MPa | 83 to 170 | |
| 220 |
| Impact Strength: Notched Izod, J/m | 68 to 69 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 61 to 110 | |
| 160 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 1130 to 1370 | |
| 930 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 1.3 |
| Limiting Oxygen Index (LOI), % | 15 | |
| 58 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.1 to 3.3 | |
| 2.5 |
| Stiffness to Weight: Bending, points | 33 to 44 | |
| 46 |
| Strength to Weight: Axial, points | 12 to 19 | |
| 34 |
| Strength to Weight: Bending, points | 24 to 32 | |
| 50 |