Tungsten, which means "heavy stone" in Swedish, is a heavy metal with a specific gravity of 19.25, not much different from osmium (specific gravity 22.57), which has the highest specific gravity of all elements.
It also has the highest melting point of any metal, at about 3,400°C, and has a relatively high electrical resistance, so it is used in furnace heaters that exceed 2,000°C. Due to its high hardness and melting point, it is also known as a metal that is very difficult to process. Its main uses include filaments, alloy materials, cutting tools, and the cores of armor-piercing bullets and highly penetrating shells, and it is used widely in industrial and military applications. It can also be made into a harder alloy by mixing it with carbon, and cemented carbide alloys combined with cobalt are used in high-end cutting tools.