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Cork vs. Type 3 Magnetic Alloy

Cork and Type 3 magnetic alloy belong to fundamentally different material chemistries. Cork is a polymeric material, while Type 3 magnetic alloy is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (21, 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 Type 3 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.020
180
Elongation at Break, % 15
43
Shear Modulus, GPa 0.010
70
Tensile Strength: Ultimate (UTS), MPa 0.85
550

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
450
Thermal Expansion, µm/m-K 200
12

Otherwise Unclassified Properties

Density, g/cm3 0.15
8.7

Common Calculations

Stiffness to Weight: Axial, points 0.074
12
Stiffness to Weight: Bending, points 60
22
Strength to Weight: Axial, points 1.6
18
Strength to Weight: Bending, points 13
17
Thermal Shock Resistance, points 16
18