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Cork vs. Thermoset PI

Cork belongs to the wood-based materials classification, while thermoset PI belongs to the thermoset plastics. There are 11 material properties with values for both materials. Properties with values for just one material (18, 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 thermoset PI.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1.0
120 to 210
Elongation at Break, % 15
2.0 to 5.9
Tensile Strength: Ultimate (UTS), MPa 0.85
37 to 81

Thermal Properties

Specific Heat Capacity, J/kg-K 2000
1130
Thermal Conductivity, W/m-K 0.040
0.29 to 1.7
Thermal Expansion, µm/m-K 200
38 to 54

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 1.5
20

Otherwise Unclassified Properties

Density, g/cm3 0.15
1.4 to 1.6

Common Calculations

Strength to Weight: Axial, points 1.6
6.5 to 16
Strength to Weight: Bending, points 13
16 to 30
Thermal Diffusivity, mm2/s 0.13
0.18 to 0.95