Lead has a density of about 11.34 g/cm3, but with tungsten, you can achieve densities of up to 19.25 g/cm3, almost two times the density of lead, comparable to that of uranium (18.9 g/cm3) and gold (19.30 g/cm3). 

Higher density means smaller parts for the same weight, so tungsten is widely used in many areas such high-performance engine in battle plane、armor piercing bullet 、 shrapnel pits、counterweight in racing car、fishing sinker、 sailing boat、radiation shielding and so on.

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Tungsten is one of the most environmentally friendly metals.

As it is known that environmentally friendly (also eco-friendly, nature friendly, and green) is a ambiguous term used to refer to goods and services, laws, guidelines and policies claimed to inflict reduced, minimal, or no harm at all, upon ecosystems or the environment. This term most commonly refers to products that contribute to green living or practices that help conserve resources like water and energy. Eco-friendly products also prevent contributions to air, water and land pollution.

Tungsten is much more environmentally friendly than lead. In fact, according to the U.S. Government's Priority List of Hazardous Substances, which is a list, in order of priority, of substances that are most commonly found at facilities on the National Priorities List (NPL) and which are determined to pose the most significant potential threat to human health due to their known or suspected toxicity and potential for human exposure at these NPL sites, lead is the second most hazardous substance…..more please visit the web http://www.chinatungsten.com/Tungsten/Material-Safety-Data-Sheet.html

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Tungsten Carbide is a special compound composed of Tungsten and Carbon. It is also called Cemented Carbide.

Tungsten Carbide is not only a kind of black crystal with metal gloss, but also has similar hardness close to diamond. Besides, it has good corrosion resistant performance. It is obvious that such advantages can help to produce or make Tungsten Jewelry with high quality and distinctive design. First of all, its hardness close to diamond makes Tungsten Jewelry so wear-resistant that it’s difficult to be scratched and distorted. In addition, due to its metal gloss, Tungsten Jewelry always stays shiny as if it were a mirror. What’s more, its good corrosion resistant performance can contribute to making it impossible to fade, discolor and resistant to rust.

However, there are some disadvantages existed in Tungsten Carbide. For example, the great brittleness it possesses itself makes it impossible for Tungsten Jewelry to be inlayed in precious stone because it is easy to be broken under the influence of its producing process. What’s worse, it is difficult to be processed because of its strong hardness so that it is scarcely possible to produce Tungsten Jewelry with various design and style.
 

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Tungsten carbide is a chemical compound formed by the union of tungsten and carbon.  Tungsten carbide has its applications widely in industries because of its own tungsten advantages including good corrosive resistance and high compressive strength (tungsten carbide's good performance at temperatures up to 800 degree). Of course, there are different kinds of  tungsten carbide products in many different fields, which mostly can be developed for use as  cutting tools, in machine tools applications, some used to produce jewelries. Besides, tungsten carbide has been also known for both its hardness and toughness, it's approximately three times stiffer than steel and much denser than steel or titanium. Therefore, thanks to its so long service life or its use  value, the more tungsten carbide products you possess, the more benefits you will save.

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Tungsten alloy can be applied in many areas such as military、aerospace、electricity、transportation、medical apparatus and instruments、sports equipment and so on due to its excellent performances. The most outstanding property of tungsten alloy is its high density, which is much higher than that of lead. That is the reason why it can be manufactured into high-performance engine in battleplane in aviation field、armor piercing bullet and shrapnel pits in military field、counterweight in racing car and sailing boat in transportation field、radiation shielding in medical field. Besides, tungsten alloy possesses high hardness、stable chemical property、no poison、good processability and other characters which ensure it's wide application.

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Raw tungsten ore market is weak and stable, generally the actual transaction, the delivery price is about 115,000; less tungsten Rail Enquiry single, vendors quotation gradually lowered, low to near 175,000; tungsten carbide powder market is relatively strong, individual high prices hard, the downstream alloy enterprises continued to wait and see.We expect the mainstream of the the tungsten market conditions in the short term to stabilize individual fluctuation.

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Cutting tools for machining
Sintered tungsten carbide cutting tools are very abrasion resistant and can also withstand higher temperatures than standard high speed steel tools. Carbide cutting surfaces are often used for machining through materials such as carbon steel or stainless steel, as well as in situations where other tools would wear away, such as high-quantity production runs. Because carbide tools maintain a sharp cutting edge better than other tools, they generally produce a better finish on parts, and their temperature resistance allows faster machining. The material is usually called cemented carbide, hardmetal or tungsten-carbide cobalt: it is a metal matrix composite where tungsten carbide particles are the aggregate and metallic cobalt serves as the matrix. Manufacturers use tungsten carbide as the main material in some high-speed drill bits, as it can resist high temperatures and is extremely hard.

Sports
Hard carbides, especially tungsten carbide, are used by athletes, generally on poles that strike hard surfaces. Trekking poles, used by many hikers for balance and to reduce pressure on leg joints, generally use carbide tips in order to gain traction when placed on hard surfaces (like rock); carbide tips last much longer than other types of tip.

While ski pole tips are generally not made of carbide, since they do not need to be especially hard even to break through layers of ice, rollerski tips usually are. Roller skiing emulates cross country skiing and is used by many skiers to train during warm weather months.

Sharpened carbide tipped spikes (known as studs) can be inserted into the drive tracks of snowmobiles. These studs enhance traction on icy surfaces. Longer v-shaped segments fit into grooved rods called wear rods under each snowmobile ski. The relatively sharp carbide edges enhance steering on harder icy surfaces. The carbide tips and segments reduce wear encountered when the snowmobile must cross roads and other abrasive surfaces.

Some tire manufacturers offer bicycle tires with tungsten carbide studs for better traction on ice. These are generally preferred to steel studs because of their superior resistance to wear.

Tungsten carbide may be used in farriery, the shoeing of horses, to improve traction on slippery surfaces such as roads or ice. Carbide-tipped hoof nails may be used to attach the shoes,or alternatively borium, tungsten carbide in a matrix of softer metal, may be welded to small areas of the underside of the shoe before fitting.
Surgical instruments

It is also used for making surgical instruments meant for open surgery (scissors, forceps, hemostats, blade-handles, etc.) and laparoscopic surgery (graspers, scissors/cutter, needle holder, cautery, etc.). They are much costlier than their stainless-steel counterparts and require delicate handling, but give better performance.

Jewelry
Tungsten carbide, typically in the form of a cemented carbide (carbide particles held together by a metal), has become a popular material in the bridal jewelry industry due to its extreme hardness and high resistance to scratching. This extreme hardness also means that it can be shattered under certain circumstances.Tungsten carbide is roughly 10 times harder than 18k gold (gold being the traditional material of wedding bands). In addition to its design and high polish, part of its attraction to consumers is its technical nature.\

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Stable and weak domestic tungsten market conditions, the tungsten ore market supply and demand sides psychological Spread, the APT business confidence, optimism turned cautious on the market outlook, attitude, poor end demand for tungsten products and deep processing market, remained smooth watching of potential. We expect the tungsten market, the maintenance of stability in the short term the main price changes in a narrower range.
 

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Many jewelers would like to dissuade you from considering a tungsten carbide ring, because they are not educated on them (or just don't sell them!). Here are a few of the myths we hear regularly and the truths about tungsten carbide rings that make them an excellent option as you shop for a ring!
                   
Myth
Tungsten carbide rings cannot be removed in the event of an accident, and may cause your finger to be amputated.

Fact
Actually, if you're in an accident, a tungsten carbide ring is one of the safest rings to have on your hand! Because tungsten carbide rings are so dense, it is nearly impossible for them to deform or injure your finger in an accident. Wearing a tungsten carbide ring may even protect you. Rings made of silver, gold or even platinum may deform, becoming harder to get off or embedding in flesh. Hospitals have a number of ways to remove a tungsten carbide ring (depending on the accident) – none of which require amputation. Here's a video of a device American Concepts & Technologies manufactured and will soon be readily available.

The durability and near-indestructability of tungsten carbide bands is why we say that if Superman were getting married, he'd want a Tungsten Pride wedding band.

Myth
Tungsten carbide rings should not contain nickel.

Fact
In truth, tungsten carbide wedding rings are not made from pure tungsten. Pure tungsten in its natural form is an ore, and does not polish up to the shine that people love about tungsten carbide rings. Makers of tungsten carbide rings need to combine tungsten ore in a powder form with various binders and sinter it all together at very high temperatures in order to achieve the desired result – a beautiful, polished and nearly indestructible tungsten carbide ring.

A nickel binder is the preferred formulation for tungsten carbide rings, as many other binders can cause your ring to discolor with wear. Many inexpensive rings use one of these lesser binders, and aren't pleasant to wear or look at!

Myth
Tungsten rings are only for men.

Fact
This couldn't be further from the truth! The same qualities that make tungsten carbide rings so great for men make them great for women as well. The strength and beauty of tungsten carbide matches well to a woman's own strength and beauty.

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Tungsten is a hard, rare metal of critical and strategic importance. The British Geological Surveyranks tungsten among the scarcest elements on earth-rarer even than rare earths. The US Department of Energy also considers tungsten a critical material. The European Commissionidentified tungsten as the second most critical material in terms of economic importance vs. supply risk. The metal's unique properties make it essential to the manufacture of everything from drill bits to cruise missiles and there are no known substitutes.
China currently dominates the supply of tungsten and is expected to do so for the next decade. However, the Chinese government has adopted restrictive policies including implementing quota systems, increasing tax rates and pushing for industry consolidation, etc. to reorganize its tungsten industry, the same as in its rare earth industry. Chinese primary tungsten production will be curbed to half its historical growth rate going forward. Further, very few tungsten mines outside of China are expected to be in production, or close to beginning production, during the next few years.
Rising demand for tungsten coupled with dwindling supplies is keeping prices high. As a result,tungsten presents a unique situation with many opportunities for producers, fabricators and investors.

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