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Tungsten Carbide vs. Hexagonal Boron Nitride

Both tungsten carbide and hexagonal boron nitride are non-oxide engineering ceramics. There are 13 material properties with values for both materials. Properties with values for just one material (11, 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 hexagonal boron nitride.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 4780
21 to 250
Elastic (Young's, Tensile) Modulus, GPa 630
14 to 60
Flexural Strength, MPa 1830
18 to 140
Poisson's Ratio 0.24
0.11

Thermal Properties

Maximum Temperature: Mechanical, °C 1000
1030 to 2350
Specific Heat Capacity, J/kg-K 280
840 to 1610
Thermal Conductivity, W/m-K 85
29 to 96
Thermal Expansion, µm/m-K 5.4
0.54 to 18

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 0.75
13 to 15

Otherwise Unclassified Properties

Density, g/cm3 15
1.9 to 2.1

Common Calculations

Stiffness to Weight: Axial, points 24
4.1 to 18
Stiffness to Weight: Bending, points 20
42 to 69
Thermal Diffusivity, mm2/s 21
9.9 to 34