PEEK vs. Hexagonal Boron Nitride
PEEK and hexagonal boron nitride belong to fundamentally different material chemistries. PEEK is a polymeric material, while hexagonal boron nitride is ceramic. 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 PEEK and the bottom bar is hexagonal boron nitride.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 120 to 300 | |
| 21 to 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 4.0 to 24 | |
| 14 to 60 |
| Flexural Strength, MPa | 150 to 330 | |
| 18 to 140 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 330 | |
| 1030 to 2350 |
| Specific Heat Capacity, J/kg-K | 1390 to 1700 | |
| 840 to 1610 |
| Thermal Conductivity, W/m-K | 0.25 to 0.93 | |
| 29 to 96 |
| Thermal Expansion, µm/m-K | 15 to 52 | |
| 0.54 to 18 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 3.0 to 14 | |
| 13 to 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 1.9 to 2.1 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.5 to 10 | |
| 4.1 to 18 |
| Stiffness to Weight: Bending, points | 36 to 73 | |
| 42 to 69 |
| Thermal Diffusivity, mm2/s | 0.1 to 0.51 | |
| 9.9 to 34 |