Tungsten is a heavy grey-white metallic element with the chemical symbol W and atomic number 74. It is a hard, rare metal under standard conditions and is found in several ores including wolframite and scheelite. TUNGSTEN has the highest melting point of all metals and is commonly used in high-temperature applications such as arc welding and cutting tools. It is also used in light bulb filaments, X-ray tubes, and other electronic components.