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Tungsten Carbide vs. Titanium Diboride

Both tungsten carbide and titanium diboride are non-oxide engineering ceramics. There are 19 material properties with values for both materials. Properties with values for just one material (1, 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 titanium diboride.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 4780
3540
Elastic (Young's, Tensile) Modulus, GPa 630
290
Flexural Strength, MPa 1830
380
Fracture Toughness, MPa-m1/2 12
6.5
Knoop Hardness 1670
2800
Poisson's Ratio 0.24
0.11
Tensile Strength: Ultimate (UTS), MPa 350
280

Thermal Properties

Maximum Temperature: Mechanical, °C 1000
1270
Specific Heat Capacity, J/kg-K 280
870
Thermal Conductivity, W/m-K 85
58
Thermal Expansion, µm/m-K 5.4
8.0

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 0.75
-6.5

Otherwise Unclassified Properties

Density, g/cm3 15
4.5

Common Calculations

Stiffness to Weight: Axial, points 24
35
Stiffness to Weight: Bending, points 20
49
Strength to Weight: Axial, points 6.6
17
Strength to Weight: Bending, points 7.5
21
Thermal Diffusivity, mm2/s 21
15
Thermal Shock Resistance, points 7.2
8.7