China Customized High Purity Tantalum Wire Wholesale Suppliers Factory

High Purity Tantalum Wire for Medical, Capacitor and Vacuum Use

Medical work takes High Purity Tantalum Wire from Shaanxi Chuanghui Daye Metal Material Co., Ltd. (CHDY). Capacitor builds take it too. So do vacuum jobs. Two routes feed output. One is electron beam melting (R05200). Powder metallurgy (R05400) is the other. Purity normally sits between 99.95% (3N5) and 99.995%. Drawing brings the wire down to 0.02 mm. Under ASTM B365, Fe and Ni stay below 50 ppm. At its tightest, tolerance is ±1%. Buyers set purity limits. They also set caps on oxygen, nitrogen, carbon and niobium. A chemical composition check can happen before an order goes in.

Why Chemical Purity Matters

One purity figure covers only a part of the spec. Two wires can state the same purity and still carry each impurity at a different level. Sensitive processing feels that gap.

Refractory metals often turn brittle because of oxygen. Nitrogen does the same thing. Hydrogen plays a part too, and so does carbon. When you specify this product, check the limit for each of them. For acid service, low hydrogen gives better results. It lowers the chance of embrittlement. Keep metallic impurities down. That brings leakage current in capacitor anode leads down as well. Medical jobs have their own reference in the specification table: ASTM F560. We also supply the High Purity Tantalum Wire in custom sizes to suit your drawing.

Key Properties of Tantalum Wire

Heat stability: It melts at 2996 °C.
Corrosion resistance: On tantalum, a dense Ta2O5 oxide film forms. The film heals itself. Through it, hot hydrochloric acid cannot pass. Nitric acid and body fluids cannot either.
Fine-diameter drawing: Drawing down to 0.02 mm is possible with this wire.
Workability: Good cold ductility normally stays in annealed tantalum wire. Bending seldom needs heat treatment first. Coiling and forming act alike.

Specifications

Product Name	High purity tantalum wire
Material	Tantalum Niobium wire R05240 (Ta-40Nb) Pure tantalum: R05200, R05400; TantalumTungsten Rod / Bar R05252 (Ta-2.5W), R05255 (Ta-10W).
Standard	ASTM B365
Service	Customized OEM, OEM/ODM/Customized, ODM Available
Packing	Wooden box
Delivery time	Stock size will be 1-5 days, normal production time is about 15 days
Payment terms	30%TT in advance,70% balance before shipment

A few values are missing from the source data. Limits for oxygen, nitrogen, hydrogen, carbon and niobium are not listed. Mechanical properties are missing too. So are the available lengths and the maximum diameter. Check every one of these with CHDY before you place an order.

Be used in a wide range of industries.

Electronic devices

Medical implants

Steel industry

Chemical Processing

Aerospace and Defense

Energy and Environmental Engineering

Certification

R05200 and R05400 Production Routes

No elements get added to R05200. Pure tantalum is all it is. Two melt routes make it: vacuum arc melting or electron beam melting. When the highest ductility matters most, people often pick this grade.

R05400 is made with powder metallurgy and sintering. Fine grain structures are often wanted. This grade fits those cases well. Before you order, check the grade against your drawing or standard.

Applications

Clean material and resistance to corrosion both count. High Purity Tantalum Wire handles that job.

Medical implants: Inside stents, radiographic markers are one job. A second job is orthopedic sutures. Tantalum normally gets accepted as biocompatible. Still, check that every device is a good fit and meets its regulatory rules.
Tantalum capacitor manufacturing: Inside electrolytic capacitors, this wire works as the anode lead. Keep metallic impurities small and leakage current stays low. Sintering needs a steady oxide layer as well. You will find these parts in tight electronics, with examples ranging from smartphones to automotive ECUs.
High-temperature vacuum components: Heating elements and cathodes in vacuum furnaces are made from it. Sputtering equipment for semiconductors depends on it too. Strong heat barely raises its vapor pressure, so wafers and substrates pick up less contamination.

Quality Control and Inspection

On this product, four points tend to come up for review. Do these checks and reports match what your order needs? Talk to CHDY.

Chemical composition: Trace impurities get measured with GDMS (Glow Discharge Mass Spectrometry) or ICP-OES. Carbon has a ppm cap. So does oxygen. The same ceiling we agreed on applies to nitrogen and hydrogen. Less embrittlement risk follows.
Mechanical testing: ASTM E8 tensile tests show whether the material is ductile. Elongation testing gives the same answer. High speed automated winding relies on that ductility. Surgical handling relies on it too.
Surface integrity: SEM inspection looks for fissures and splits. Lubricant residues show up this way too. Die marks are one example. Corrosion can start at these defects. Capacitor leakage is another problem they can cause.
Dimensional tolerance: A laser micrometer measures the diameter. It also confirms the size stays even. Both sides agreed on a tolerance, and the reading gets matched to that number.

Electron beam melting

Forging

Rolling

Machining and forming

Dimension inspection

Packaging

ISO 9001:2015

Surface Finish and Welding Notes

Acid washed wire comes out with a matte grey finish. Medical markers often use it, because the surface is clean. Bright drawn wire looks shiny, and electronics is where it usually turns up. Drawing lubricants on that wire have to be taken off with care.

This wire can be TIG welded. Laser welding is an option as well. Do the job inside a chamber filled with inert gas (argon or helium). A vacuum setup works too. Once the metal passes 300 °C, air that reaches it starts oxidizing fast. From there, the metal can go badly brittle.

Purchasing and Customization of High Purity Tantalum Wire

Price for this product is set by several things. Purity counts, and so do diameter, tolerance, surface finish and quantity. Going higher in purity usually calls for extra refining steps, and multiple remelting cycles are a common example. Those steps push cost up. Pick the purity level your process really needs.

Available purity grades, diameters and material conditions depend on your requirements and supplier availability. Lead time, minimum order quantity and documentation are not stated on this page, so please confirm them with CHDY. When you request a quotation, share:

Grade (R05200 or R05400)
Diameter and tolerance
Surface finish
Impurity limits, including oxygen, nitrogen, hydrogen, carbon and niobium
End use and required quantity

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About CHDY

CHDY works out of the Baoji High-tech Development Zone in Shaanxi Province. People there call the region China's "Titanium Capital". The founder has spent more than 30 years in the rare metal industry.

Titanium and tantalum are part of This product range. So are niobium, tungsten and molybdenum, plus zirconium and nickel. Other non-ferrous and rare metal alloys are available too. Metallurgy and electronics are two of the fields served, and medical and special steel are the others. Products have been applied in the United States, Germany, South Korea, and Singapore.

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FAQ

Q: How does R05200 differ from R05400?

A: R05200 has no alloy in it. Vacuum arc melting or electron-beam melting produces it. Choose this grade when ductility matters most. Sintering powder gives you R05400. A fine grain structure is the usual reason people pick it.

Q: Can tantalum wire be welded?

A: Yes. TIG welding works on it. Laser welding does too. Use a vacuum for either one, or a chamber filled with inert gas. Air hotter than 300 °C can oxidize the metal. It turns the metal brittle.

Q: How does purity affect price?

A: Cleanliness climbs with each refining step a part goes through. Repeated remelting cycles are one route to that. Extra steps push the price up every time. Send us your impurity limits. The quote we give will then cover exactly what you need.

Q: What surface finishes can I get?

A: Acid washed turns up a lot on medical markers. It gives a flat grey look. For electronics, bright drawn is a common pick because it comes out shiny. The lubricant does need to be cleaned off carefully, though.

Q: Is tantalum wire a good fit for medical use?

A: Tantalum turns up in many medical devices. Corrosion has a hard time getting to it. Its surface oxide layer stays put. The specification table names ASTM F560 as the medical reference. Check the grade with CHDY before you order. Documentation matters, and so do device requirements. Ask CHDY about both. One check remains: MRI compatibility for the finished device.

Q: Why is purity percentage a poor guide on its own?

A: The purity label can read the same on two wires. Their impurity levels may still differ. Check the full chemical makeup instead. The oxygen, nitrogen, carbon and niobium figures matter most.

Contact Us

For a quotation on High Purity Tantalum Wire, email your grade, diameter, tolerance and impurity limits to info@chdymetal.com. Tell us your end use too. Add the quantity you need.