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Spruce-pine-fir vs. NBR Rubber

Spruce-pine-fir belongs to the wood-based materials classification, while NBR rubber belongs to the thermoset elastomers (rubber). There are 9 material properties with values for both materials. Properties with values for just one material (10, 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 NBR rubber.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 0.5
1.3
Elongation at Break, % 1.5
380
Maximum Temperature: Mechanical, °C 130
110
Specific Heat Capacity, J/kg-K 1380
1350
Strength to Weight: Axial, points 47
3.9
Strength to Weight: Bending, points 86
12
Tensile Strength: Ultimate (UTS), MPa 85
18
Thermal Conductivity, W/m-K 0.12
0.25
Thermal Diffusivity, mm2/s 0.17
0.15