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Tungsten Carbide vs. Graphite

Both tungsten carbide and graphite are non-oxide engineering ceramics. There are 13 material properties with values for both materials. Properties with values for just one material (8, 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 tungsten carbide and the bottom bar is graphite.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 4780
90
Elastic (Young's, Tensile) Modulus, GPa 630
21
Flexural Strength, MPa 1830
80
Tensile Strength: Ultimate (UTS), MPa 350
18

Thermal Properties

Maximum Temperature: Mechanical, °C 1000
220
Thermal Conductivity, W/m-K 85
6.0
Thermal Expansion, µm/m-K 5.4
4.9

Otherwise Unclassified Properties

Density, g/cm3 15
1.8

Common Calculations

Stiffness to Weight: Axial, points 24
6.7
Stiffness to Weight: Bending, points 20
53
Strength to Weight: Axial, points 6.6
2.9
Strength to Weight: Bending, points 7.5
8.7
Thermal Shock Resistance, points 7.2
12