Pure tungsten is a steel-gray to tin-white metal. Very pure tungsten can be cut with a hacksaw, forged, spun, drawn, and extruded. The impure metal is brittle and can be worked only with difficulty. Tungsten has the highest melting point of all metals, and at temperatures over 1650°C has the highest tensile strength.
Melting point: 3422 °C Boiling point: 5555 °C
A foil is a thin sheet of pure metal. Given its fragile nature, some foils have protective coatings.