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Cork vs. Commercially Pure Silver

Cork and commercially pure silver belong to fundamentally different material chemistries. Cork is a polymeric material, while commercially pure silver is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 14 material properties with values for both materials. Properties with values for just one material (9, 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 commercially pure silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.020
71
Elongation at Break, % 15
1.1 to 29
Shear Modulus, GPa 0.010
26
Tensile Strength: Ultimate (UTS), MPa 0.85
190 to 340

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
240
Thermal Conductivity, W/m-K 0.040
420
Thermal Expansion, µm/m-K 200
20

Otherwise Unclassified Properties

Density, g/cm3 0.15
10

Common Calculations

Stiffness to Weight: Axial, points 0.074
3.8
Stiffness to Weight: Bending, points 60
13
Strength to Weight: Axial, points 1.6
4.9 to 8.9
Strength to Weight: Bending, points 13
6.9 to 10
Thermal Diffusivity, mm2/s 0.13
170
Thermal Shock Resistance, points 16
9.5 to 17