Alloy Tungsten has become an essential material for a wide variety of applications. It has the highest melting point of any metal, and its high density is equaled only by gold, platinum, and a few other rare and expensive metals.
Pure tungsten is quite brittle and difficult to machine.
The addition of elements such as nickel, copper, and iron, creates a family of materials with extremely useful properties. These alloys are economically fabricated by powder metallurgy techniques and are routinely machined by conventional methods. Mechanical properties add tensile strength, ductility, hardness-compare favorably with common engineering materials such as steel.