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Carbon-carbon vs. K93050 Alloy

Carbon-carbon and K93050 alloy belong to fundamentally different material chemistries. Carbon-carbon is a ceramic material, while K93050 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 (15, 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 carbon-carbon and the bottom bar is K93050 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
190
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 36
72
Tensile Strength: Ultimate (UTS), MPa 19
500 to 680

Thermal Properties

Specific Heat Capacity, J/kg-K 760
460
Thermal Expansion, µm/m-K 4.0
12

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.2

Common Calculations

Stiffness to Weight: Axial, points 31
13
Stiffness to Weight: Bending, points 89
23
Strength to Weight: Axial, points 3.0
17 to 23
Strength to Weight: Bending, points 9.1
17 to 21
Thermal Shock Resistance, points 3.5
16 to 21