Spruce-pine-fir vs. PA 11
Spruce-pine-fir belongs to the wood-based materials classification, while PA 11 belongs to the thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is spruce-pine-fir and the bottom bar is PA 11.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 16 | |
| 0.4 to 1.3 |
| Elongation at Break, % | 1.5 | |
| 80 to 130 |
| Tensile Strength: Ultimate (UTS), MPa | 85 | |
| 25 to 51 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 1380 | |
| 1740 |
| Thermal Conductivity, W/m-K | 0.12 | |
| 0.28 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.5 | |
| 1.0 |
| Limiting Oxygen Index (LOI), % | 24 | |
| 29 |
Common Calculations
| Stiffness to Weight: Axial, points | 18 | |
| 0.22 to 0.71 |
| Strength to Weight: Axial, points | 47 | |
| 6.7 to 14 |
| Strength to Weight: Bending, points | 86 | |
| 18 to 30 |
| Thermal Diffusivity, mm2/s | 0.17 | |
| 0.16 |