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ACI-ASTM CA40 Steel vs. Cork

ACI-ASTM CA40 steel and cork belong to fundamentally different material chemistries. ACI-ASTM CA40 steel is a metal, while cork is a polymeric material. 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 (20, 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 ACI-ASTM CA40 steel and the bottom bar is cork.

ACI-ASTM CA40 (SCS2A, J91153) Cast Stainless SteelCork
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
0.020
Elongation at Break, % 10
15
Shear Modulus, GPa 76
0.010
Tensile Strength: Ultimate (UTS), MPa 910
0.85

Thermal Properties

Specific Heat Capacity, J/kg-K 480
2000
Thermal Conductivity, W/m-K 25
0.040
Thermal Expansion, µm/m-K 10
200

Otherwise Unclassified Properties

Density, g/cm3 7.7
0.15

Common Calculations

Stiffness to Weight: Axial, points 14
0.074
Stiffness to Weight: Bending, points 25
60
Strength to Weight: Axial, points 33
1.6
Strength to Weight: Bending, points 27
13
Thermal Diffusivity, mm2/s 6.7
0.13
Thermal Shock Resistance, points 33
16