What metal is tungsten?
Tungsten, also known as a “wolfram”, was discovered in 1781 by Carl Wilhelm Scheele, a Swedish pharmacist. In 1783, two Spanish chemists, brothers Don Fausto, and Don Juan del Huyar, extracted the pure metal from another mineral, wolframite. The resultant pure tungsten is a steel-gray to tin-white metal with the highest melting point (at 3,422 °C, 6,122 °F) and lowest vapor pressure of all metals, and with the highest tensile strength. How hard is tungsten – how scratch-resistant? The hardness of tungsten makes it the most scratch-resistant of metals, and a perfect material for use in watch making. Due to its extreme hardness, however, tungsten oxidizes in air and must be protected at elevated temperatures. But it has excellent corrosion resistance and is attacked only very slightly by most mineral acids. High-Tech Ceramic High-tech ceramic refers to materials made of nonmetallic minerals that have been permanently hardened by firing at a high temperature, or objects made of such mater
