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Carbon-carbon vs. Grade 19 Titanium

Carbon-carbon and grade 19 titanium belong to fundamentally different material chemistries. Carbon-carbon is a ceramic material, while grade 19 titanium is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 15 material properties with values for both materials. Properties with values for just one material (19, 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 grade 19 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
120
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 36
47
Tensile Strength: Ultimate (UTS), MPa 19
890 to 1300

Thermal Properties

Maximum Temperature: Mechanical, °C 2400
370
Specific Heat Capacity, J/kg-K 760
520
Thermal Conductivity, W/m-K 40
6.2
Thermal Expansion, µm/m-K 4.0
9.1

Otherwise Unclassified Properties

Density, g/cm3 1.7
5.0

Common Calculations

Stiffness to Weight: Axial, points 31
14
Stiffness to Weight: Bending, points 89
33
Strength to Weight: Axial, points 3.0
49 to 72
Strength to Weight: Bending, points 9.1
41 to 53
Thermal Diffusivity, mm2/s 31
2.4
Thermal Shock Resistance, points 3.5
57 to 83