1. What is tungsten?

Tungsten (symbol W) is a heavy, hard grey - white metal. One of the minor metals, it is now also known as a strategic metal – critical to a wide-range of manufacturing uses. It has a number of distinct features in that it has the highest melting point of all metals at 3422°C (5700°C, boiling), and is extremely corrosion resistant, acid resistant and is deemed environmentally benign. Tungsten is nearly as hard as diamond, has the highest tensile strength of all metals, has high electrical conductivity and is thermally and chemically stable. For this reason, tungsten alloys and some tungsten compounds cannot be substituted in its various applications.