Ballpoint pen or ball-pen is a kind of worldwide popular writing tools in recent decades. It has a simple structure, is easy to carry, provides writing lubrication and it is suitable used as autotype.

Tungsten alloy ball has many advantages, such as high density, small volume, excellent hardness, superior wearing resistance, high ultimate tensile strength, high ductility, high temperature resistance, etc. has a density twice that of steel and are more than 50% heavier than lead, so it is a very suitable material to make into ballpoint bead. These features provide stability when writing, so tungsten alloy ball pen bead will make writing easy and enjoyable. Its wear resistant is the key factor for the manufactures to produce tungsten alloy ball pen bead.

Tungsten alloy ball is used in the production of pen bead, tip of ballpoint is generally made of two kinds of material, and one is stainless steel beads and other kind is tungsten alloy ball pen bead. High quality ballpoint tip is made of pure tungsten ball. Ballpoint tip tungsten ball can be used for a long time, and makes writing is also very fluent.

Tungsten alloy ball pen bead is a kind of use the tiny round pearl rotation of the pen, the round pearl by brass, steel or made of tungsten alloy ball, can you write in ink onto the paper will release. Tungsten alloy ball pen bead is different with the reed pen, feather pen, metal tip pen and fountain pen.



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Tungsten alloy brick has the good properties of high density with small volume, good corrosion resistance, non-toxic and environmentally friendly, easily to be machined into different types of products, so it is widely used as counterweight.

Tungsten alloy brick is widely used in car as counterweight, the car can be more safe and speed up with tungsten alloy in it.


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Tungsten heater filament made of tungsten wire, features high melting point and high corrosion resistance, mainly application in vacuum metalized applicant, such as aluminizing scope, aluminum spraying, chrome scope, mirror making, ceramic coating, plastics and heater element for decoration articles.

Tungsten heater filament can be stranded into single or multi wires according to the samples or drawings of customers. Pure wire and doped wire are both available. Diameter of tungsten wire: 0.2-1.2mm.
Tungsten heater filament, single or multiple strand tungsten, molybdenum, or tantalum wire. Stranded wire can incorporate a core of aluminum for wetting purposes.



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Tungsten alloy crawler is a kind of ray apparatus which has special application. It is primary used for flaw detection of pipelines, especially for pipeline seaboard and offshore pipelines.

With the gaining popularity of pipelines which transport oil and gas, safety and reliability for pipelines draw attention increasingly. Tungsten alloy X-ray crawler is a measure which is commonly used and quite economic. It meets the requirements of pipelines perfectly. Based on the types of radioactive source, tungsten alloy crawler can be classified into tungsten alloy X-ray crawler and tungsten alloy γ-ray crawler.



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Due to its special properties, tungsten alloy sphere use in the counterweight, fishing weight, counterweights, etc.

Tungsten alloy sphere provides a safer alternative to lead, and their higher density enables them to hold their shape better, even under extreme conditions. While uranium offers comparable density, its volatile nature and the special licensing requirements needed for radioactive materials make working with it difficult.



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Tungsten alloy sphere counterweights are incorporated into the pitch control system of many propeller designs as a fail-safe device to prevent over speeding. What's more, tungsten heavy alloy is incorporated into the rotating flywheels of gyroscopic controls for the storage of kinetic energy. Tungsten alloy counterweights are used for adjusting the center of gravity of the triangle and the frequency of oscillation of the laser beams. Bucking bars made of tungsten heavy alloy are ideal for vibration-damping applications with high density.

Usually, space for the counterweight is limited, so the need of heavy but small objects is great. Tungsten alloy sphere, with the density of 16.5/ cm 3 to 18.5/m3 about 50 percent higher than lead and much higher than steel, is ideal for counterweight. Tungsten alloy counterweight as sphere can prolong the life of itself because of its wear resistance and round shape. In addition, lead is toxic while tungsten alloy sphere is environmentally friendly.



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Tungsten resources of Jiangxi province play an important role in China and even in the world. Ganzhou ,one of cities in Jiangxi province,is known as "the tungsten capital of the world".There is a good news that prospecters found 0.35 million tons of tungsten in Wuning. Tungsten resources in the region is expected to amount to more than 1 million tons.

The tungsten industry in Jiangxi province makes great contribution to the economy of Jiangxi province.The income of the state-owned enterprise Jiang Tungsten Holding group topped 1O billion yuan. How can tungsten industry in Jiangxi be stronger than before? How can tungsten industry be more friendly to environment? This is a topic worthing discussing.


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For the deepest penetrations, pure metals yield the best results, because they display the greatest ductility, hence postponing the breakup of the stretching jet into particles. In charges for oil-well completion, however, tungsten alloy shaped charge liner is essential that a solid slug or "carrot" not be formed, since it would plug the hole just penetrated and interfere with the influx of oil. In the petroleum industry, therefore, liners are generally fabricated by powder metallurgy, often of pseudo-alloys, which if tungsten alloy shaped charge liners un-sintered, yield jets that are composed mainly of dispersed fine metal particles.

During World War II, shaped charge liners were made of copper or steel, though other materials were tried or researched. The precision of the charge's construction and shaped charge liners detonation mode were both inferior to modern warheads. This lower precision caused the jet to curve and to break up at an earlier time and hence at a shorter distance. The resulting dispersion decreased the penetration depth for a given cone diameter and also shortened the optimum standoff distance. Since the charges were less effective at larger standoffs, side and turret skirts fitted to some German tanks to protect against Russian anti-tank rifle fire were fortuitously found to give the jet room to disperse and hence reduce its penetrating ability. Now most shaped charge liners are made of tungsten alloy.

The use of tungsten alloy shaped charge liners today may increase the penetration of some warheads. Due to constraints in the length of the projectile/missile, the built in stand-off on many warheads is not the optimum distance. The skirting effectively increases the distance between the amour and the target, providing the warhead with a more optimum standoff and greater penetration if the optimum stand-off is not drastically exceeded. Tungsten alloy shaped charge liners should not be confused with cage amour that is used to damage the fusing system of RPG-7 projectiles. The amour works by deforming the inner and outer orgies and shorting the firing circuit between the rocket's piezoelectric nose probe and rear fuse assembly. If the nose probe strikes the amour, the warhead will function as normal.

The spacing between the shaped charge liners and shaped charge liners target is critical, as there is an optimum standoff distance to achieve the deepest penetration. At short standoffs, the jet does not have room to stretch out, and at long standoffs, tungsten alloy shaped charge liners eventually breaks into particles, which then tend to drift off the shaped charge liners of axis and to tumble, so that the successive particles tend to widen rather than deepen the hole. At very long standoffs, velocity is lost to air drag, degrading penetration further.



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Tungsten alloy radiation shielding can be used for radioactive eliminator to protect staffs from radiation. Radioactive static eliminator is kind of electrostatic removing device which produces ray by utilizing radioactive isotope and ionizes ambient air into positive and negative ions. It gathers opposite charges on the surface of charged body in neutralization.

Radioactive static eliminator is build at the place which may cause static electricity. It releases rays constantly, ionizing air, producing positive and negative ions and changing into conductor. For that, a circuit is formed between the surface of body which cause static electricity and eliminator. Those ions neutralize static charge on the surface of body and eliminate static electricity. Radioactive static eliminator has been widely used for weaving, printing, papermaking, cigarette, rubber, plastic and electronics, sensitive film or other industries. It can be also used to eliminate ash on slide, photographic film, lianr and microbalance, etc.

Compared with lead, the density of tungsten alloy radiation shielding is higher than lead by 60%. High density allows a reduction in physical sizes of shielding components without compromising the effectiveness of shielding characteristics. High density also means better radiation absorption. Otherwise, tungsten alloy has the advantage of non-toxicity. So tungsten alloy is more suitable for radioactive static eliminator than lead.



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Tungsten alloy shielding is necessary for irradiation linac. Electrons caused by irradiation linac are shielded easily for having small exit range. But they can cause strong bremstrahlung, being resisting by components of irradiation linac, cable as irradiated target, barrier plate, floor or other materials. Maximum energy of bremmstrahlung is possible maximum electron energy. Generally, irradiation linac will not cause photonuclear reaction and induced radioactivity, if energy is no more than 10MeV. For that, bremsstrahlung (X-ray) is primary target which must be shielded for irradiation linac.

Emissivity of X-ray caused by irradiation linac is relevant to electron energy, beam intensity, atomic number of target material, thickness of target or other factors and it changes with exit angle. For definite target material Z and thickness of target, emissivity of X-ray which is corresponding to unity beam intensity increases significantly with the increasing energy of accelerated electron and angular distribution of emissivity also changes with the increasing of electron energy.

Lead is used as traditional raw materials for radiation shielding. But lead has toxicity which may cause pollution. The density of tungsten alloy is higher than lead by 60%. The high density of tungsten alloy shielding allows a reduction in physical sizes of shielding components, without compromising effectiveness of shielding characteristics. Otherwise, tungsten alloy shielding has the advantages of non-toxicity. So compared with, tungsten alloy is more suitable for irradiation linac to shield against X-ray.



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