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Cork vs. Spruce-pine-fir

Both cork and spruce-pine-fir are wood-based materials. There are 15 material properties with values for both materials. Properties with values for just one material (4, 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 cork and the bottom bar is spruce-pine-fir.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1.0
50
Elastic (Young's, Tensile) Modulus, GPa 0.020
16
Elongation at Break, % 15
1.5
Shear Modulus, GPa 0.010
1.2
Tensile Strength: Ultimate (UTS), MPa 0.85
85

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
1380
Thermal Conductivity, W/m-K 0.040
0.12
Thermal Expansion, µm/m-K 200
6.5

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 1.5
0.5

Otherwise Unclassified Properties

Density, g/cm3 0.15
0.5

Common Calculations

Stiffness to Weight: Axial, points 0.074
18
Strength to Weight: Axial, points 1.6
47
Strength to Weight: Bending, points 13
86
Thermal Diffusivity, mm2/s 0.13
0.17
Thermal Shock Resistance, points 16
58