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Spruce-pine-fir vs. CAP

Spruce-pine-fir belongs to the wood-based materials classification, while CAP belongs to the thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is spruce-pine-fir and the bottom bar is CAP.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 0.5
1.2
Dielectric Strength (Breakdown Potential), kV/mm 0.5
15
Elongation at Break, % 1.5
35 to 50
Specific Heat Capacity, J/kg-K 1380
1480
Strength to Weight: Axial, points 47
6.5 to 10
Strength to Weight: Bending, points 86
17 to 23
Tensile Strength: Ultimate (UTS), MPa 85
28 to 45
Thermal Conductivity, W/m-K 0.12
0.25
Thermal Diffusivity, mm2/s 0.17
0.14
Thermal Expansion, µm/m-K 6.5
14