Tungsten Carbide (WC)

Tungsten carbide is a non-oxide engineering ceramic material.

Material Properties

Compressive (Crushing) Strength4780 MPa (690 x 103 psi)

Density15 g/cm3 (940 lb/ft3)

Elastic (Young's, Tensile) Modulus630 GPa (91 x 106 psi)

Electrical Resistivity Order of Magnitude1 10x Ω-m

Flexural Strength1830 MPa (270 x 103 psi)

Fracture Toughness12 MPa-m1/2

Knoop Hardness1670

Poisson's Ratio0.24

Specific Heat Capacity280 J/kg-K

Strength to Weight Ratio23 kN-m/kg

Tensile Strength: Ultimate (UTS)350 MPa (51 x 103 psi)

Thermal Conductivity85 W/m-K

Thermal Diffusivity20 m2/s

Thermal Expansion5.4 µm/m-K

The length of each bar compares the given value to the highest value in the database.

Further Reading

Handbook of Refractory Carbides and Nitrides: Properties, Characteristics, Processing and Applications, Hugh O. Pierson, 1996

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