PA 6/12 vs. PBI
PA 6/12 belongs to the thermoplastics classification, while PBI belongs to the thermoset plastics. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is PA 6/12 and the bottom bar is PBI.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1.7 to 2.2 | |
| 5.9 |
| Elongation at Break, % | 30 to 120 | |
| 3.0 |
| Flexural Modulus, GPa | 1.2 to 2.2 | |
| 6.5 |
| Flexural Strength, MPa | 45 to 64 | |
| 220 |
| Tensile Strength: Ultimate (UTS), MPa | 40 to 58 | |
| 160 |
Thermal Properties
| Maximum Temperature: Decomposition, °C | 450 | |
| 590 |
| Specific Heat Capacity, J/kg-K | 1590 | |
| 930 |
| Thermal Conductivity, W/m-K | 0.22 | |
| 0.41 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 3.9 to 12 | |
| 3.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.1 | |
| 1.3 |
| Limiting Oxygen Index (LOI), % | 25 | |
| 58 |
| Water Absorption After 24 Hours, % | 0.25 | |
| 0.4 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.89 to 1.2 | |
| 2.5 |
| Stiffness to Weight: Bending, points | 38 to 41 | |
| 46 |
| Strength to Weight: Axial, points | 10 to 15 | |
| 34 |
| Strength to Weight: Bending, points | 25 to 31 | |
| 50 |
| Thermal Diffusivity, mm2/s | 0.13 | |
| 0.34 |