The History
Tungsten (Swedish and Danish tung sten meaning "heavy stone", even though the current name for the element in Swedish is Wolfram) was first suggested to exist by Peter Woulfe in 1779 who examined wolframite and concluded that it must contain a new substance. In 1781 Carl Wilhelm Scheele ascertained that a new acid could be made from tungstenite. Scheele and Torbern Bergman suggested that it could be possible to obtain a new metal by reducing tungstic acid. In 1783 JosŽ and Fausto Elhuyar found an acid in wolframite that was identical to tungstic acid. In Spain later that year the brothers succeeded in isolating tungsten through reduction of this acid with charcoal. They are credited with the discovery of the element.

Like gold, silver and platinum, Tungsten is an element #74. It is naturally occurring and is one of the main elements responsible for the development of human civilization. Without tungsten, we would not have the incandescent light bulb as the filament inside the bulb is tungsten and has the toughness and resilience exceeding any other metal. In 1922 the Germans developed Tungsten Carbide as the material used in making better cutting tool bits for precision milling and cutting of steel. In World War II, tungsten played an enormous role in background political dealings. Portugal, as the main European source of the element, was put under pressure from both sides, because of its sources of wolframite ore. The resistance to high temperatures, as well as the extreme strength of its alloys, made the metal into a very important raw material for the weaponry industry.

Today tungsten carbide is in widespread use in the worldwide machinery of modern industry and is a darling super alloy that has made aerospace advances possible. And it is still the one little item that makes a light bulb work.

Tungsten Properties
Pure tungsten, that is, before alloying with any other material, is steel-gray to tin-white and is a very hard element. Tungsten can be cut with a hacksaw when it is very pure (it is brittle and hard to work when impure) and is otherwise worked by forging, drawing, or extruding. This element has the highest melting point (3422 ¡C) (6192 ¡F), lowest vapor pressure and the highest tensile strength at temperatures above 1650 ¡C (3000 ¡F) of all metals. Its corrosion resistance is excellent and any attack by a mineral acid is virtually imperceptible. Tungsten metal forms a protective oxide when exposed to air but can be oxidized at high temperature. When alloyed in small quantities with steel, it greatly increases its hardness.

Tungsten is: Four times stiffer than steel Six times stiffer than aluminum 100 times stiffer than plastic
Tungsten has the highest melting point and boiling point of all the elements, melting at 3,420 degrees C or 6,700 degrees F, and boiling at 5,700 degrees C and 10,300 degrees F. What this means to the average person is that on the surface of the Sun, Tungsten would become liquid, but if you dropped a piece of Tungsten from outer space, it would enter the EarthÕs atmosphere, heat up and glow to red color, and still hit the Earth in a solid piece.

Tungsten As Used in Jewelry
Tungsten Carbide has only recently been used in the fashioning of jewelry due to its hypoallergenic nature and the fact that due to its extreme hardness it is not apt to lose its luster like other polished metals. In fact, a ring or bracelet made from Tungsten Carbide will never need polishing and it is virtually scratchproof...only another item with a diamond or diamond surface or a special sapphire in it can scratch tungsten jewelry. Carefree Tungsten Carbide is made without the use of any Cobalt additive and not just anyone can make a piece of Tungsten Carbide jewelry. In order to manufacture a perfectly crafted piece of jewelry, it takes skill that only a few companies have mastered. It cannot be made in someoneÕs garage with a lathe and a machinist.

Jewelry With a Lifetime High Polish
Tungsten rings and bracelets are heavy, and Tungsten Carbide is the hardest of all metals. It is polished to a perfect mirror finish using diamonds, and, unlike other metals, it will retain the exact polish finish for decades to come.

The Distinction of Wearing an Exotic Metal
Because it has the highest melting point of any metal known, Tungsten Carbide is used in space age applications and leading edge military projects such as hand held nuclear fusion devices. The hardness and heat resistance of Tungsten Carbide renders it impervious to radiation. Its tough enduring qualities make it the perfect masculine metal for a manÕs ring or bracelet.

The Art and Science of Master Craftsmanship
Tungsten Carbide rings and bracelets are manufactured using sophisticated vacuum induction furnaces that require an oxygen free environment, and reaching an amazing temperature over 6,200 degrees F. If an astronaut dropped one of these rings from 300 miles above the earth, it would enter the atmosphere glowing red-hot and land on the surface of the Earth virtually unscathed by the experience.

Can a Tungsten Carbide Ring be Re-sized?
Unlike most other rings, a local jeweler cannot size Tungsten Carbide rings. It is just impossible to rework the material.

How to Care for your Tungsten Carbide Jewelry
Your jewelry will require very little care. Rubbing with any clean cloth will bring out and restore the bright finish, as it was on the day you first received the ring or bracelet. This jewelry is the only jewelry of any kind that will last a lifetime with no sign of wear. Buy it when you are age 20 and at age 70 it will look exactly the same.

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten carbide provides a durable, lasting option for your jewelry purchase. Because of its ability to sustain wear and tear, tungsten carbide has become a popular metal for wedding rings.

What is Tungsten Carbide?
Tungsten carbide is a durable metal that can be permanently polished to maintain a new appearance for years to come.

Cost
Tungsten carbide is typically a much less expensive alternative than other metals such as platinum and gold.

Shaping
Because the hardness of tungsten carbide, jewelry made from this metal will not bend or lose its shape.

Shine and Luster
Tungsten carbide jewelry has, and maintains, as much shine and luster as other popular jewelry metals.

Care
Water and a mild soap can be used to clean your tungsten carbide jewelry. Do not use chemicals or a jewelry-cleaning machine, as this may cause damage or discoloration.

Tungsten Jewellery Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-jewellery.com
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Tungsten Rings are then newest thing in jewelry. They have such amazing qualities that allow for unparalleled beauty, style and design. But not every one knows the hidden gifts of this terrific metal.

If you have a magnificent tungsten ring and worried about how to take care of it, worry no more. Tungsten with its superior physical qualities make these rings virtually carefree.  If your ring is a true tungsten or tungsten carbide ring the cleaning and care is very simple because it will hold its radiant shine forever. However it can accumulate fingerprints and maybe smudges. Get yourself a soft cloth or jewelry polish cloth, which will take care of the annoying prints and smudges.

Tungsten doesn’t scratch but once in a while it will look as though it may have been scratched.  What has probably happened is that the ring has accidentally rubbed up against something else with metal and a part of the material has attached it’s self to the tungsten in your ring. This is a simple and painless thing to fix with out any problems. Find yourself a soft tooth brush and use a small amount of mild liquid soap.  Gently brush to remove the foreign metal from your magnificent tungsten ring. Make sure to rinse the soap off, pat dry with a soft cloth and your ring is as good as new.

What to do if a Tungsten Ring is stuck on your finger.
 
Now what if that beautiful piece of tungsten artistry gets stuck on your finger? Easy use ice to reduce that size of your finger.  Most of the time simply soaking your hand for about a minute will do the trick and the ring will slide off. Or you could try a lubricant of some kind. Liquid soap or petroleum jelly work rather well.  Apply a generous amount to the knuckle area than hold the tungsten ring with a dry cloth and ease it off with a back and forth rocking motion. Clean the ring and all is grand.

Tungsten Jewellery Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-jewellery.com
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A tungsten light bulb refers generally to incandescent light bulbs, which are lights that generate light by heating a metal wire or filament with electricity until it becomes white hot and glows.

Definition
Tungsten light bulbs are named for the metal tungsten, a gray material that has an extremely high melting point. Because of its high melting point and its strength, it makes for a good filament in light bulbs. A filament is a metal wire that glows when electricity is channeled into it. Light bulbs that use this method to generate light with heat are called incandescent lights.

Popular in Photography
Tungsten light bulbs and other incandescent bulbs are often used in photography as an alternative to flash lights because the continuous light they provide allows photographers to see shadows. They pose some challenges, however. When used in a studio, the bulbs can make the room extremely warm. Since the light given off by tungsten bulbs is of a lower temperature than the sun, outdoor film is unsuitable for use with the lighting. Instead, photographers use special tungsten film or use a tungsten filter on the light or camera lens to make the colors in photographs appear more natural.

History
The history of tungsten light bulbs dates back more than 100 years. Modern tungsten light bulbs were developed by General Electric around 1906. Before that, inventors experimented with many other kinds of light bulbs with alternative filaments. However, other materials had lower melting points and did not last as long as tungsten bulbs.

Burning Out
Over time, tungsten filaments can wear out. The repeated heating of the metal causes it to slowly evaporate. The wire slowly gets thinner and more fragile until it breaks, either spontaneously or by jostling. If you drop a bulb and the glass doesn't break, shake it. If you hear a rattling sound, that means the tungsten filament wire has snapped and the two ends are slapping against each other.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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