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Graphite vs. Carbon-carbon

Both graphite and carbon-carbon are non-oxide engineering ceramics. There are 13 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is graphite and the bottom bar is carbon-carbon.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 90
240
Elastic (Young's, Tensile) Modulus, GPa 21
95
Tensile Strength: Ultimate (UTS), MPa 18
19

Thermal Properties

Maximum Temperature: Corrosion, °C 180
350
Maximum Temperature: Mechanical, °C 220
2400
Thermal Conductivity, W/m-K 6.0
40
Thermal Expansion, µm/m-K 4.9
4.0

Otherwise Unclassified Properties

Density, g/cm3 1.8
1.7

Common Calculations

Stiffness to Weight: Axial, points 6.7
31
Stiffness to Weight: Bending, points 53
89
Strength to Weight: Axial, points 2.9
3.0
Strength to Weight: Bending, points 8.7
9.1
Thermal Shock Resistance, points 12
3.5