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The thermal conductivity of WC-Co cemented carbides is approximately twice that of unalloyed steels and one third of that of copper. The tungsten carbide grain size has a minor effect, but the presence of g-phase decreases the thermal conductivity considerably. These optimize the resistance for carbide components or carbide tools like carbide rotary cutters.

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At room temperature, the specific heat capacity for straight WC-Co grades is about 150 to 350 J/(kg•°C), which is nearly half the value of unalloyed steels.

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If titanium carbide is included, the values will be slightly higher than for straight WC-Co cemented carbides. This values optimizes the resistance for carbide components or carbide tools like carbide rotary cutters.

As tungsten carbide has a very low linear expansion coefficient, WC-Co cemented carbides have values of approximately half that of ferritic and martensitic steels while the ratio to austenitic steels is about 1:3.

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