3D Printed Collimators for Physical Optics Enables Lower Costs

A collimator, a device used to transform the diverging light or other radiation from a point light source into a parallel beam. Special measurements in spectroscopy and in geometric and physical optics require this kind of collimation.

The optical collimator consists of a tube. One end of the tube is a convex lens, and the other end is an adjustable aperture. The aperture is located in the focal plane of the lens. The radiation entering the aperture leaves the collimator as a parallel beam, so the image can be viewed without parallax.

The collimator may be a telescope with an aperture at the main focal length of the lens. The light from the light source is focused on the slit through another lens with a similar focal length, and the slit serves as the light-emitting object of the optical system.

In radiology, a collimator is a set of absorbers used to limit X-rays, gamma rays, or nuclear particle beams to the size and angular spread required for a particular application.

The typical manufacturing technology for this product is powder metallurgy + machining process. This process can take months and cost is very high. For complex parts, it is difficult to be processed with traditional method. Now that they can be 3D printed, the same collimators can be manufactured in 5 to 15 days with low costs. 

Moreover, this process can allow for much finer detail in collimator designs, meaning that researchers have the capability to reduce leaks and shape a collimator in unique ways.

The 3D printed collimators could lead to a change in the way collimators are used. Currently, a single collimator is used for a single neutron scattering instrument. Now that collimators can be created quickly and inexpensively, they can be changed and used in different experiments, similar to the use of different sample environments for different experiments.

Chinatungsten Online is a professional manufacturer of tungsten and molybdenum. Kindly feel free to contact us if you have got the purchasing plan for 3D printed collimators. 

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Pure Tungsten Pins Is Used for Probes and Cathode Emission

Tungsten pins, also named tungsten needles or tungsten electrodes, are a typical tungsten product with purity of 99.95%. It has a silver-white appearance, a slender structure, a length of 20mm-1000mm, and a diameter of 0.3mm-10mm. Usually, the product is customized. 

The pin is mostly made from pure tungsten and sometimes tungsten alloy, with the characteristics of high hardness, greater tensile strength, good wear resistance, excellent ductility, and excellent electrical conductivity. However, if a fine tip is required, it is very easy to bend or break during transportation or using. 

These pins can be divided into different kinds of products, such as rod shape or a rod with a sharp tip. Although their characteristics are the same, their applications show slight difference. 

The rod-shaped electrode is a slender cylindrical pure tungsten or tungsten alloy, which is mainly used as an electrode for argon arc welding. During welding, an arc is generated between the tungsten electrode and the workpiece, and under the action of the arc heat, the filler metal will melt with the workpiece to form a weld. 

The pointed needle can be simply understood as pure tungsten or tungsten alloy with a sharp end at one or both ends, and is mainly used as an instrument probe, such as a digital four-probe tester. The distance between the four needles in the digital four-probe tester cannot be too long or too short, and each has different functions.

In addition to being used as argon arc welding electrodes and instrument probes, tungsten pins can also be used for cathode emission and for engraving metal surfaces, cutting particles in rubber wool, handling single particles, and blowing crystal embryos and glass.

At Chinatungsten Online, we pride ourselves in offering our customers sophisticated pins/needles machining and fabrication capabilities. We’ve honed our processes during our decades of successfully working with molybdenum and tungsten, and are dedicated to supporting your precision machining and fabrication requirements.

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What Is the Best Material for X-ray Collimation – Tungsten Metal or Tungsten Alloy?

A collimator is a device used to transform the divergent light or other radiation from a point light source into a parallel beam, and also is an absorber device used to limit X-rays, gamma rays, or nuclear particle beams to the size and angular spread required for a specific application. Normally, special measurements in spectroscopy and geometric and physical optics require this kind of light collimation.

For reasons of patient dose and image quality, X-ray collimation for radiography and fluoroscopy projection imaging is important. Actively collimating the volume of interest will reduce the overall integrated dose to the patient, thereby minimizing the risk of radiation. Less radiation will result in less X-ray scattering incident on the detector. This leads to improved object contrast and image quality.

In a linear accelerator (linac), the main collimator may be made of depleted uranium because the density of this material is approximately 1.6 times that of lead. The secondary electric collimator can better define the beam shape and is made of lead or tungsten. The multi-leaf collimator (MLC), which is now widely used in medical linear accelerators, consists of two thin tungsten "leaf" collimator groups, each group consisting of 40 to 80 leaves composition. 

As depleted uranium and lead materials are not easy to completely eliminated by the body after entering the human body, and will damage the internal organs, tungsten metal is the most popular materials for this device now. Generally spreading, the higher density of the material, the better radiation protection. Why tungsten alloy collimator is more popular compared with pure tungsten collimator? 

The density of tungsten metal is high, however, it is also easy to fragile during machining if you use powder metallurgy to produce, especially for complex collimator. Therefore, tungsten alloy, added with the element of nickel, copper or iron, help improve the problem. The alloy has high density, better processability and good anti-radiation, and thus most collimators are made of this material. 

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3D Printing Pure Tungsten Parts in the Medical Industry

Tungsten, also known as Wolfram, is a rare metal known for its highest melting point of all elements. In addition to excellent temperature resistance, the material also has strong abrasion resistance and chemical resistance. These good properties make it an ideal material for components that operate at extreme temperatures.

Pure tungsten does not have the hardness of composite materials, but its excellent heat resistance and radiation shielding properties are very useful in the nuclear and medical industries. The medical industry generally uses pure tungsten for MRI scans, collimators, and radiation shielding. But there is a problem: it is very brittle at room temperature, which means it is difficult to process using traditional techniques.

For simple collimators, radiation shielding and other products, powder metallurgy technology can be used to process, but for high precision and complex parts, using traditional technology is suffering. Therefore, the emergence of 3D printing has solved this thorny problem.

The principle of 3D printing is to use electrons accelerated in a vacuum to melt metal powder. By moving the electron beam, 3D components can be produced from metal by means of addition. This technology was originally developed for titanium alloys and materials that require high processing temperatures.

The tungsten metal powder is preheated before it is melted. This preheating procedure reduces the deformation and internal stress of the metal, making it possible to process materials that are easily broken at room temperature but deform when heated. The printed product basically does not need to be processed again, unless there are special requirements for precision or other requirements.

Tungsten provides characteristics rarely seen in 3D printing materials. It is non-magnetic, good at absorbing and shielding radiation, so that 3D printing pure tungsten parts can be widely used in the nuclear energy industry and medical industry. 3D printed tungsten collimator is one of them. Chinatungsten Online is a professional manufacturer of tungsten and molybdenum, which can provide 3D tungsten products.

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Why Use Thorium Tungsten Wires as Ion Source?

Many analytical and medical devices are using thorium tungsten wires as ion source. Why use thorium tungsten materials? What about tungsten or neodymium tungsten materials? 

Electrons are made available from a cathode in the source, which in most cases will use thermionic emission, i.e., heating the material so that electrons gain some energy and are able to escape the work function of the cathode material (the energy required per electron to leave the material). To lower work function, manufacturers would like to use thorium tungsten filaments. 

Doping a tungsten wire with thorium can effectively improve the thermionic emission. Doping lowers the work function of the system, resulting in a thermionic current greater than the one produced from a pure W filament. Why it happens? What are the mechanisms that lower the work function?

An idea is that thorium is an α-emitter. The 4He nuclei then produce scattering sources for the electrons, enhancing the emission probability. And according to Electronics Engineer's Reference Book, the mechanism is that thorium is added to the tungsten filament, and then the whole thing is heated significantly hotter than its normal working temperature. This causes the thorium to migrate to the surface of the filament, resulting in essentially a thorium-plated tungsten filament. Thorium has a lower work-function than tungsten so the effective work-function of the filament is that of thorium.

Some manufacturers have tried alternative materials, like neodymium tungsten rods for lamp electrodes, it works good for certain lamps but it does not for other lamps. Just like mercury for many types of lamps, thorium tungsten seems to be very mighty. Only the problem is quantities for these lamp manufacturers and device manufacturers are not large as thorium belongs to radioactive material. 

Due to regulation in Europe, transfer of thorium powder is very limited if not banned, there are a lot of papers to talk about this thorium powder ban, because it can be considered as Radioactive if it is concentrated very high, such as thorium powder. however, for thorium wires or rods, they are usually low in concentration, which is harmless to the health. 

Chinatungsten Online is a professional manufacturer of tungsten for more than two decades, if you have got the purchasing plan for thorium tungsten wires or rods, do feel free to contact us.

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Differences of Tungsten Crucible Made by Sintering and 3D Printing

To be used for rare earth metal smelting, induction furnace heating element, quartz glass smelting, sapphire crystal growing furnace, ect., the material should be extremely refractory, such as clay, graphite, tungsten, molybdenum, china clay, or quartz or hard-to-melt metallic iron because the usual working temperature is above 2000℃.

Tungsten metal is the most popular one among them given that its smelting point is high to 3610℃. Especially for sapphire crystal growing furnace, the crucibles made from tungsten metal plays a key role in success rate of seed crystals and the quality of pulling crystals during the growth of sapphire crystals.

How is a tungsten crucible produced? Generally speaking, it can be divided into spinning, stamping, forging and sintering according to different manufacturing processes. For most types of crucibles, they are formed by sintering. 

For sintering crucibles, they have very high purity, high density, precise size and smooth surface, which are deeply loved by many users. They are usually manufactured by the isostatic pressure. The isostatic pressure-sintering mainly includes a batch of raw materials, powder loading, isostatic pressure pressing, high-temperature sintering, machining, finished product inspection, and other procedures. 

However, there is a new producing method for this product and the method is getting more and more popular among the world – 3D printing. 3D printing in tungsten or molybdenum can deals with many problems that sintering can not resolve now, for example, if you need a part very urgently, how can you get it within a few days? with a 3D metal print machine, you can get it in three to seven days. 

Meanwhile, it can also offer the ability to manufacture complex parts without the need for tooling. Tungsten crucible can be produced more cost effectively and faster by using it. Parts made by this method can be highly detailed and thin. Details as small as 100 μm with a positional accuracy down to 25 μm can be achieved.

It also has its drawback – cost highly. With the development of technology, the cost is reduced greatly compared to before. For small and complex parts, it is worth trying. Kindly contact Chinatungsten Online if you have any inquiry. 

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Why Tungsten Flux Can Be Used in the Carbon and Sulfur Analyzer as Additive

Tungsten flux is a kind of coarse particle made by breaking tungsten bars instead of sintered tungsten powder with purity of over 99.9%. There are others name for it, such as tungsten accelerator, tungsten chip accelerator, tungsten particles and tungsten granule. 

Owing to its unique physical and chemical properties, it is widely used in many fields, for example, it is very suitable as a catalyst in a carbon and sulfur analyzer, used as a filler for shielding materials or used in radiation protection doors and baffles. Meanwhile, it is also suitable as a counterweight filler. 

Why tungsten flux is used as the flux during the combustion process of high frequency furnace in the analysis of infrared carbon and sulfur? 

With a melting point of 3380°C, tungsten is the most difficult metal to melt. However, the metal is easy to oxide. Tungsten begins to oxidize and emit a lot of heat when oxygen is passed through at 650°C. The infrared carbon-sulfur analyzer has the characteristics of high instantaneous heating value and fast reaction speed, so tungsten particles are needed as additive.

Some people may consider this product only as flux, actually, it can be used as additive. In the infrared carbon-sulfur analyzer, tungsten granule also generates heat, adjusts the acidity and alkalinity of the medium, stirs, catalyzes, stabilizes combustion, and anti-interference. Its roles are important and multiple.

With the help of the flux, the accuracy of the measurement value tested by carbon and sulfur analyzers can be effectively improved. The carbon and sulfur analyzer can quickly and accurately analyze the carbon and sulfur content in solid and fluid materials such as carbon steel, high, medium and low alloy steel, pig iron, gray cast iron, ductile iron, alloy cast iron, various iron alloys, ferrosilicon, ferromanganese, nickel iron, lithium iron, ferrochromium, rare earth metals, and coke, coal, slag, catalyst, ores and so one. 

As a professional manufacturer over two decades, Chinatungsten Online provides high-purity tungsten granule as well as many other parts. Please contact us if you have any inquiry. 

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China’s Zhangyuan Tungsten Raised Its Bid Price for APT

Analysis of latest tungsten market from Chinatungsten Online

China’s domestic tungsten price continued to rise in the week ended on Friday, August 06, 2021, benefiting from tightening availability of raw materials, new bid prices and average forecast prices for early August shoring up market confidence and increased demand. 

China’s Ganzhou Tungsten Association (GTA) released its average tungsten forecast prices for August: 55% black tungsten concentrate price was $17,698.4/t, up $1,904.8 month-on-month; APT price was $303.1/mtu, up $21.5/mtu; medium particle tungsten powder price was $41.7/kg, up $5.2/kg compared from July.

Jiangxi Tungsten’s bid price of high-grade black tungsten concentrate was $18,015.9/t for the first half of August, up $873/t compared with the second half of July. 

Zhangyuan Tungsten’s bid prices for the first half of this month: black tungsten concentrate (WO3≥55%) was quoted at $17,698.4/t, up $1,031.7/t; scheelite concentrate (WO3≥55%) was quoted at $17,460.3/t, up $1,031.7/t; APT was quoted at $303.1/mtu, up $17.9/mtu compared with the second half of July. 

Prices of tungsten products on August 9, 2021

Picture of tungsten ore 

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China Tungsten Price Was in the Upward Trend in Early July, 2021

Analysis of latest tungsten market from Chinatungsten Online

China tungsten price was in the upward trend in the week ended on Friday, July 09, 2021 with the impact of increased bid prices from listed enterprises for the first half of this month. 

At the beginning of July, China’s domestic and foreign cemented carbide enterprises successively increased their offers of alloy products. Raw material manufacturers had strong rised mentality and downstream buyers had to accept their high offers. But except for actual needs, consumers were still cautious of high-price transactions. 

The price in the tungsten concentrate market is exploring towards $16,666.7/ton. Low-price resources were hard to be purchased while high-price deals were reported rarely. Mainstream offers for ammonium paratungstate (APT) hovered around $278/mtu. Factories worried about the risk of price inversion and some of them stopped quoting. For the tungsten powder market, some suppliers made offers up to $38.1/kg, but actual deals concluded at about $37.5/kg. 

In the short term, as domestic epidemic has been affectively contained, the economic recovery and the release of domestic demand are relatively optimistic, plus with the increase in production and operation costs of raw materials, labor, logistics and freight, environmental protection and others, participants have good expect for the outlook.

Prices of tungsten products on July 12, 2021

Picture of tungsten acid 

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Tungsten Copper Heat Sink in 5G High-Speed Optical Devices

As the development of 5G has become a trend, 5G high-speed optical devices and their heat dissipation devices have also become the focus of attention and discussion. And there is no doubt that tungsten copper heat sink has become the best choice.

Compared with 4G, the download rate of 5G should be increased by at least 9-10 times. In the era of 5G network, no matter what kind of 5G bearer solution is inseparable from 5G communication devices, 5G has higher and higher requirements for optical devices and is small in size. , High integration, high speed, low power consumption, the main commonly used device rates for 5G fronthaul, midhaul and backhaul are 25G, 50G, 100G, 200G and 400G optical devices, of which 25G and 100G optical devices are the most widely used 5G communication devices.

Optical devices are divided into active devices and passive devices. Optical active devices are optoelectronic devices that can convert electrical signals into optical signals or convert optical signals into electrical signals that need to be driven by external energy in optical communication systems. They are optical transmissions. The heart of the system. Optical passive devices are optoelectronic devices that do not require external energy to drive their work.

When the optoelectronic chip is working, it will not convert 100% of the injected current into output photoelectrons, and part of it will be used as energy loss in the form of heat. If a large amount of heat continues to accumulate and cannot be eliminated in time, it will have many disadvantages to the performance of the components. Generally speaking, the increase in temperature will reduce the resistance value, reduce the service life of the device, deteriorate the performance, material aging, and damage the components; in addition, high temperature will also cause stress and deformation of the material, reduce reliability, and malfunction of the device. So when considering the device package structure, thermal design is one of the most important considerations.

 

Heat conduction is an important aspect of material selection. It refers to the heat generated by the thermal motion of microscopic examples such as molecules, atoms and free electrons when there is no relative displacement between the various parts of the object, which is called heat conduction. For example, the chip conducts heat dissipation through the heat sink underneath, and the optical device contacts the housing through heat dissipation silicone grease to dissipate heat, etc., which all belong to heat conduction. The thermal conductivity of different materials is different. Tungsten copper heat sink is gradually being used more and more widely in 5G high-speed optical devices because of its high thermal conductivity and low thermal expansion coefficient.

Tungsten Wire Brings Bright

When the lights are on and the streets are lit up by neon lights, have you ever wondered why a light bulb can glow and bring bright when it is connected to a power source?

The filament of an electric light bulb is wound with a thin tungsten wire in a spiral shape. Generally, the W wire starts to emit light when heated to 100°C, and can withstand high heat of 2300℃～2500℃. In an electric bulb made of glass, air is removed, nitrogen, argon, and other non-combustible gases are filled in, and then sealed, which becomes an electric bulb.

When the current flows from the wire into the filament (tungsten filament), because the resistance of the filament is quite large, high heat is generated, and when the heat reaches a certain level, light is emitted. Light bulbs are "luminous due to heat", so light bulbs are very hot, so don't touch them with your hands.

Thomas Alva Edison invented the incandescent light bulb in 1879 and is known as the father of light. Although the first light bulb he invented was not the first electric light in history, Edison was the first person to invent and use the light bulb. Therefore, he is commonly referred to as the "inventor of the electric light."

At the earliest, Edison invented a carbon filament lamp (the raw material is carbon filament), which used carbon filament to generate heat radiation and emit light, while tungsten filaments are used in modern incandescent bulbs.

At the same time, in order to protect the W wire, the glass bulb was also evacuated and filled with nitrogen, which can make the life of the bulb a little longer.

The structure of an electric bulb can be simply divided into three parts: the lamp cap, the wick, and the glass bulb. The structure of the wick is an important condition for light emission.

The wick is closed by 3 wires, which are tungsten wires and two guide wires. Among them, the guide wires are copper guide wires and have relatively low resistance, while the resistance of tungsten wires is slightly larger.

When the current enters from the solder joint, it passes through the tungsten wire and the two guide wires in turn. When the current reaches the W wire with higher resistance, it starts to generate heat. After reaching a certain temperature, the wire will generate heat radiation and emit light.

From the perspective of physical energetics, the light-emitting principle of incandescent lamps is actually very simple. It is divided into two processes: firstly, electric energy is converted into heat energy (thermal effect), and then heat energy is converted into light energy (heat energy is not all converted into light energy, there will be some other consumption).

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Tungsten Alloy Mouse Weight

Tungsten alloy mouse weight refers to adding a fixed or adjustable tungsten alloy weight to the gaming mouse to improve the feel of the mouse.

China has entered the heyday of bronze castings between 1700 and 1000 BC, and the craftsmanship has reached a very high level. The Simuwu Fangding Ding weighing 875 kg in the Shang Dynasty of China, the Yizun plate of the Zenghou in the Warring States Period, and the translucent mirror of the Western Han Dynasty are all representative products of ancient counterweight iron. Most of the early castings were tools or utensils used in agricultural production, religion, life, etc., with a strong artistic color. At that time, the counterweight iron craft was developed in parallel with the pottery craftsmanship and was greatly influenced by the pottery. In 513 BC, China cast the world's first cast iron part, the Jin Kingdom cast-shaped tripod, weighing about 270 kilograms. Europe also began to produce iron castings around the eighth century. The appearance of counterweights has expanded the application range of castings. For example, in the 15th to 17th centuries, Germany, France and other countries have successively laid many cast iron pipes to supply drinking water to residents. After the Industrial Revolution in the 18th century, industries such as steam engines, textile machines, and railways emerged. Castings entered a new period of service to large industries, and counterweight iron technology began to make great developments.

With the development of technology and time, tungsten alloy counterweights have slowly appeared on the market. One of the smaller areas of use is gaming mouse counterweights. Tungsten alloy is usually made of tungsten, nickel and copper/iron, and surely, tungsten copper is also can be applied as counterweight. Furthermore, there are other customized content of tungsten alloy, and the same is the tungsten is used for its high density. Tungsten plastic or rubber is a new counterweight appeared in the market with its plasticity compared with hard alloy.

 

Gaming mouse is designed to meet the needs of games with higher performance, comfort and user-defined functions. Such a mouse, whether it is optical or laser, often uses better performance engines, micro switches and foot pads, with better ergonomic design and surface treatment, to meet the players’ pursuit of hand feeling and performance, and greatly improve Operation efficiency, while ensuring a longer service life. In addition to the hardware part, a truly qualified gaming mouse will also be equipped with driver software to enable players to customize the game and improve game operations according to their needs. Therefore, the cost of a gaming mouse with both soft and hard performance will be much higher than the average mouse, so the retail price will be relatively more expensive.

 

In order to have a good hand feeling when playing games, a tungsten alloy piece will be added to the mouse to increase the weight of the mouse without feeling the space when using the mouse.

 

The built-in tungsten alloy mouse weight can be divided into fixed and adjustable types. The adjustable weights give players the right to adjust the weights. Players can use different combinations to obtain products of various weights according to their needs. The most commonly used It is a weight of 5 grams, 6 grams, 7 grams and 10 grams. The fixed weight is to put the same block of the same weight in the mouse. In addition to environmental protection, the tungsten alloy mouse counterweight allows the mouse to have more space to add other functional blocks due to its small size.

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Tungsten Copper Application – EDM Electrode

Tungsten copper is widely used as the EDM electrode during the machining. Electric discharge machining refers to a method of machining a workpiece in a certain medium through the electric erosion effect of the pulse discharge between the tool electrode and the workpiece electrode.

Electric discharge machining is a method of processing using electricity and heat that began to be researched in the 1940s and gradually applied to production. In the previous EDM, copper or copper alloy was basically used as the machining electrode.

These two materials are cheap and convenient to use, but the disadvantages are that the copper and copper alloy electrodes are not resistant to electric spark ablation, the electrode consumption is large, and the machining accuracy is also poor, and sometimes they have to be processed multiple times to meet customer requirements. . With the increase in the precision of molds and the increasing demand for many more difficult-to-process materials, EDM technology has become more and more mature, and tungsten copper has gradually become the main consumable for this process, and the amount of use is increasing.

 At present, copper-tungsten alloys can be used as electrode materials such as resistance welding electrodes, EDM electrodes, and plasma electrodes. In EDM, its purpose is to transmit processing pulses while at the same time eroding the workpiece with its own minimum consumption. The main reasons for using copper tungsten as electrodes are its fast processing speed, high quality and low loss. At the same time, because the material itself has good electrical and thermal conductivity and good resistance to spark corrosion, this is suitable for high-speed tooling and difficult-to-process materials. The finishing process has obvious advantages. Therefore, the use of CUW electrodes has become more and more extensive.

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Tungsten Wire Mesh

Tungsten wire mesh, also known as tungsten wire shielding mesh, filter tungsten mesh, high temperature tungsten mesh, is widely used in vacuum furnace tungsten mesh heating element, heat treatment support mesh, various machinery, electrical appliances, air conditioning, filtration Radiator and electromagnetic shielding net, vacuum furnace heat treatment grid, light wave filter, etc.

The tungsten mesh has a tightly woven structure, square and uniform holes, no broken ends, no deformation in the effective working area, and mature craftsmanship. It is woven with high-quality pure tungsten wire (black pure tungsten wire, with tungsten content greater than or equal to 99.95%), grade W-1. The most common tungsten mesh weaving process is plain weaving and twill weaving. The mesh after weaving is smooth and oil-free, and no broken wires. Tungsten mesh has large resistance, high melting point, high density and superior performance. It is very suitable for light wave blocking and electromagnetic shielding.

The specifications of the tungsten wire mesh weave, the wire diameter can be as thin as Ø0.03mm, and the width can be as wide as 2000mm. The size can be customized, and it can also be cut into circles, squares, strips, etc. Another important specification index of the screen specification is expressed by the number of meshes, which can be made into 10 mesh, 20 mesh, 30 mesh, 37 mesh, 40 mesh, 50 mesh, 80 mesh, 100 mesh, 150 mesh, 200 mesh, etc.

The surface of tungsten mesh is different, which can be divided into white tungsten mesh and black tungsten mesh. Generally, black tungsten wire is used for weaving first, and then if white wire mesh is required, the graphite layer on the surface is removed by electrolytic alkaline washing to make the surface appear metallic and shining.

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Tungsten Alloy Plate Price on May 27, 2021

90W 160x80x40mm tungsten alloy plate price is 590.00USD/PC on May 27, 2021, EXW, Xiamen, China. Both the content of WNIFE and WNICU are acceptable to produce this kind of alloy to reach the density of 17g/cm3.

If you have any inquiry of tungsten alloy, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Fax: +86 592 5129797

 

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Copper Tungsten Bar Price on May 26, 2021

15x15x200mm 75W25Cu copper tungsten bar price is 48.00USD/PC on May 26, 2021, EXW Xiamen, China. The density of 75W25Cu is about 14.5g/cm3. The price of tungsten copper is going up slightly in May due to the increasing of tungsten raw material price.  

If you have any inquiry of tungsten copper products, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Fax: +86 592 5129797

 

Scan QR code of Chinatungsten Wechat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.

Cleaned Tungsten Wire Price on May 26, 2021

Cleaned tungsten wire price is 120.00USD/KG on May 26, 2021, EXW, Xiamen, China. Cleaned W wire is cleaned the layer of graphite from black tungsten wire.

If you have any inquiry of tungsten wire, please feel free to contact us:

Email: sales@chinatungsten.com/sales@xiamentungsten.com

Tel.: +86 592 5129696/+86 592 5129595

Fax: +86 592 5129797

 

Scan QR code of Chinatungsten Wechat platform to follow up the daily latest price and market of tungsten, molybdenum and rare earth.