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Cork vs. S45000 Stainless Steel

Cork and S45000 stainless steel belong to fundamentally different material chemistries. Cork is a polymeric material, while S45000 stainless steel 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 (23, 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 S45000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.020
200
Elongation at Break, % 15
6.8 to 14
Shear Modulus, GPa 0.010
76
Tensile Strength: Ultimate (UTS), MPa 0.85
980 to 1410

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
480
Thermal Conductivity, W/m-K 0.040
17
Thermal Expansion, µm/m-K 200
11

Otherwise Unclassified Properties

Density, g/cm3 0.15
7.8

Common Calculations

Stiffness to Weight: Axial, points 0.074
14
Stiffness to Weight: Bending, points 60
25
Strength to Weight: Axial, points 1.6
35 to 50
Strength to Weight: Bending, points 13
28 to 36
Thermal Diffusivity, mm2/s 0.13
4.5
Thermal Shock Resistance, points 16
33 to 47