My Science Project On Tungsten

Properties Of Tungsten

Atomic Number: 74

Atomic Weight: 183.84

Melting Point: 3695 K (3422°C or 6192°F)

Boiling Point: 5828 K (5555°C or 10031°F)

Density: 19.3 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 6

Group Number: 6

Group Name: Transition Metals

Malleable: yes

Ductile: no

Tungsten Facts

Pure tungsten is a steel-gray to tin-white metal. Tungsten has the highest melting point and lowest vapor pressure of all metals, and at temperatures over 1650°C, has the highest tensile strength. The metal oxidizes in air and must be protected at elevated temperatures. It has excellent corrosion resistance and is effected only slightly by most mineral acids. Contrary to popular belief, pure tungsten is not all that hard. In fact pure tungsten is soft enough to be cut by a hacksaw. While tungsten itself is not as hard as people might think, a tungsten compound called tungsten carbide, is extremely tough and is used in drill bits, high speed cutting tools, and mining machinery.