Spruce-pine-fir vs. UHMW-PE
Spruce-pine-fir belongs to the wood-based materials classification, while UHMW-PE belongs to the thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is spruce-pine-fir and the bottom bar is UHMW-PE.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 16 | |
| 0.8 |
| Elongation at Break, % | 1.5 | |
| 400 |
| Tensile Strength: Ultimate (UTS), MPa | 85 | |
| 49 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 1380 | |
| 1750 |
| Thermal Conductivity, W/m-K | 0.12 | |
| 0.41 |
| Thermal Expansion, µm/m-K | 6.5 | |
| 180 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.5 | |
| 0.94 |
Common Calculations
| Stiffness to Weight: Axial, points | 18 | |
| 0.47 |
| Strength to Weight: Axial, points | 47 | |
| 14 |
| Strength to Weight: Bending, points | 86 | |
| 32 |
| Thermal Diffusivity, mm2/s | 0.17 | |
| 0.25 |
| Thermal Shock Resistance, points | 58 | |
| 25 |