Hexagonal Boron Nitride vs. PEEK
Hexagonal boron nitride and PEEK belong to fundamentally different material chemistries. Hexagonal boron nitride is a ceramic material, while PEEK is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown.
For each property being compared, the top bar is hexagonal boron nitride and the bottom bar is PEEK.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 21 to 250 | |
| 120 to 300 |
| Elastic (Young's, Tensile) Modulus, GPa | 14 to 60 | |
| 4.0 to 24 |
| Flexural Strength, MPa | 18 to 140 | |
| 150 to 330 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 1030 to 2350 | |
| 330 |
| Specific Heat Capacity, J/kg-K | 840 to 1610 | |
| 1390 to 1700 |
| Thermal Conductivity, W/m-K | 29 to 96 | |
| 0.25 to 0.93 |
| Thermal Expansion, µm/m-K | 0.54 to 18 | |
| 15 to 52 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 13 to 15 | |
| 3.0 to 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.9 to 2.1 | |
| 1.3 to 1.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.1 to 18 | |
| 1.5 to 10 |
| Stiffness to Weight: Bending, points | 42 to 69 | |
| 36 to 73 |
| Thermal Diffusivity, mm2/s | 9.9 to 34 | |
| 0.1 to 0.51 |