What substance has the highest melting point?

By Forinfos - 17/12/2025 - 0 comments

Tungsten has the highest melting point of the pure elements under normal atmospheric pressure, and tantalum hafnium carbide has the highest melting point of any substance. The melting point of tungsten is 3410 degrees Celsius, and the melting point of tantalum hafnium carbide is 4215 degrees Celsius.

Carbon is unique among the chemical elements; it does not have a melting point at all under normal atmospheric pressure. Instead, carbon sublimates from a solid to a gas. Carbon exists in a liquid phase only at pressures above 10 MPa. When subjected to this level of pressure, carbon's melting point is slightly lower than that of tantalum hafnium carbide.

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