Engineering materials based on Tungsten

With all of its high quality and specific properties, Tungsten (or commonly known as Wolfram) is essential metal in many modern industries, whether it’s used in its raw form or more often in the form of an alloy with many other materials. Tungsten is one of the hardest metals known, with the highest melting temperature point, extreme resistance to corrosion and pressure, but with solid flexibility and machinability. Combined with various other metals and materials, tungsten composes myriad of alloys utilized widely in many fields of industry, including common everyday domestic products, but medical equipment, optical systems, aircraft industry as well.

Hardmetals as a necessity

Hardmetals is another term for cemented carbides, materials composed out of tungsten monocarbide mixed with cobalt or nickel matrix. These materials combine properties of tungsten and founding metals, resulting in new-composed materials with impressive characteristics. Tungsten in hard metals provides extreme hardness, strength, temperature and corrosion resistance, while metal compounds (nickel and cobalt) add up to plasticity, flexibility, and toughness. By combining these properties into the same material, hard metals are a versatile group of widely used engineering materials with an essential role in the production of various tools and equipment. Hard metals are commonly used in metallurgy, machining industry, production of wear elements, coating, mining, and construction industry.

tungsten-drill

High – speed tungsten steel

Tungsten was among the first materials added to steel to improve its qualities. This alloy was introduced into heavy metal industry back in 19th century, and it has been exploited and utilized ever since. The addition of tungsten into steel increases the hardness of steel, its cutting capacity, corrosion resistance, as well as temperature and pressure resistance, which is widely used for the production of construction elements, cutting and drilling tools and various heavy construction in the construction industry. The term “high-speed steel” refers to the utilization of this material in manufacturing various tools that develop high speed while functioning, thus work against intensive friction and rising temperature. Tungsten added to steel enables these tools to withstand these conditions without losing their performance quality.

Tungsten in lamp industry

Tungsten’s extremely high melting temperature point, low vaporing pressure, hardness, and duration are properties exploited in the light industry for centuries. Tungsten is used to manufacture lightbulb filaments and is seen in all sorts of domestic or specific lighting. Incandescent lamps consume around 10% of the annual tungsten production. Tungsten filaments are, also, added to vehicle lights, airplane lights, lights and lamp used in surgery and other medical fields, optical systems and much more.

Electrical and chemical industry

One more field where tungsten’s low vaporing pressure at extremely high temperatures is utilized and explored. Electronic industry uses tungsten for producing electron emitters, various contact materials, integrated circuits, X-ray tubes and much more. Aside electrical industry, chemical industry, and biochemistry labs benefit from tungsten utilization too. The chemical industry uses colored tungsten granules, and labs use various tungsten compounds as catalysts or reagents in mineralogy. Tungsten as a catalyst is used to treat exhausted gases and for separation of minerals based upon their different density. There are even some cases where tungsten bar can easily replace a steel bar as this material shows some extraordinary crafting features.