pure tantalum sheet/plate

Pure Tantalum Sheet/Plate for Chemical, Semiconductor and Medical Use: ASTM B708, Custom Sizes

Some jobs need flat metal that will not corrode. Chemical plants are one case. Semiconductor fabs are another. Medical device makers rely on it as well. One option for work like this is pure tantalum sheet/plate. Shaanxi Chuanghui Daye Metal Material Co., Ltd. sits in Baoji High-tech Development Zone. Material from this supplier meets ASTM B708. Two grades are offered: R05200 and R05400. Sheet is one form you can order. Plate is available too. Foil and strip also ship. Listed thickness runs 0.5–20 mm. Width covers 50–1200 mm. Length goes from 30–2500 mm. Custom sizes can be arranged. Purity comes at 99.95% (3N5) or 99.99% (4N). Have a look at the specs below. Then send your grade in for a quote. Tell us the form and size as well.

What Is plate?

On this page, this product means a flat mill product. The base metal is unalloyed tantalum (Ta). ASTM B708 has two grades here. R05200 is electron-beam or vacuum-arc melted. R05400 is made by powder metallurgy.

Tantalum is a refractory metal. It resists hot hydrochloric acid. Hot sulfuric acid and nitric acid are no problem either. Liquid metal corrosion is also resisted. That is why liners and heat exchanger plates use it in aggressive media. Check that it suits your medium before ordering. Check its concentration and temperature too.

Specifications

Information not listed above, such as dimensional tolerances, surface condition, delivery condition, MOQ and lead time, has not been specified. Please confirm it in your inquiry.

Material Properties That Matter in Service

Tantalum forms a stable oxide film (Ta₂O₅) on its surface when exposed to oxygen. This film is the basis of its corrosion resistance in acid.

Thermal conductivity of 57 W/m·K is relevant for heat transfer parts such as exchanger plates. The typical tensile strength of 205–300 MPa and the typical elongation shown in the table are useful reference points for forming work, so confirm your forming requirements before ordering.

Forming can show up on the surface, and grain size plays a part in that. A fine grain keeps the "orange peel" effect in check. Embrittlement is held back by low oxygen and carbon content.

Applications

Chemical process industry. Bayonet heaters show up a lot in this sector. You will also see shell-and-tube heat exchangers used widely. Another place they appear is reaction vessel cladding. Three things decide whether the material is a fit: the acid involved, how strong it is, and the temperature it works at.

Semiconductor and electronics. Sputtering targets can be made from this sheet. Those targets lay down diffusion barrier layers. Such a layer slows copper migration into silicon. Capacitors are another place where the material shows up.

Medical and prosthetics. Implant parts give tantalum a large outlet. Cranial plates count as one example. Suture clips are another. A third is porous meshes used to rebuild bone. Check the material grade before you buy for a medical use. Ask for the traceability paperwork as well, and look at the rules that apply in your own case.

One reason pushes most buyers toward pure tantalum sheet/plate in all these fields: it resists corrosion. Match the grade and the form to what your service conditions demand.

Quality Control and Inspection Items

When you order to ASTM B708, write the inspection items into the order. Four points are what buyers normally check:

• Chemical composition: Purity (99.95%+) is simple to confirm by GDMS or ICP-OES. That same run also reports the interstitial elements C, O, N, H. Hydrogen embrittlement depends on those elements.
• Metallography: Grain size is measured to ASTM E112. Formability holds steady as long as the structure stays even and equiaxed.
• Ultrasonic testing: Under ASTM E214, internal voids or delamination will show up. Any sheet going into vacuum use needs that check.
• Dimensions: Check the thickness against your drawing. Size and flatness need the same look. On stamping lines and automated welding lines, this is where it counts most.

Tell us in your inquiry which tests and documents you need. Put that confirmation in writing before you order.

​​​​​

Electron beam melting

​​​​​

Forging

​​​​​

Rolling 

​​​​​

Machining and forming

​​​​​

Dimension inspection

​​​​​

Packaging

Custom Supply and Purchasing Considerations for pure tantalum sheet/plate

To get a quote on this product, tell us the grade. Pick R05200 or R05400. Which form do you need: sheet, plate, foil or strip? Next comes thickness. Give us the width and the length too. What you plan to do with it matters as well. Acid service, deep drawing or vacuum, for example. Then we can match the right grade. Custom sizes are available.

Put ASTM B708 and the inspection items above in writing to confirm them. Prices move over time, because tantalum comes from coltan, a conflict mineral. Mining regulation, Dodd-Frank compliance, supply chain ethics and purity processing all drive the cost.

Be used in a wide range of industries.

​​​​​

Electronic devices

​​​​​

Medical implants

​​​​​

Steel industry

​​​​​

Chemical Processing

​​​​​

Aerospace and Defense

​​​​​

Energy and Environmental Engineering

Why Work with Chuanghui Daye

You will find Shaanxi Chuanghui Daye Metal Material Co., Ltd. in Baoji High-tech Development Zone. People call this area China's "Titanium Capital". The founder brings over 30 years of work in the rare metal industry.

Pure tantalum sheet/plate sits in a wider range. Titanium, niobium, tungsten, molybdenum, zirconium, nickel and other non-ferrous and rare metal alloys are also covered. Customers in more than 50 countries have received these products. The United States, Germany, South Korea and Singapore are among them.

​​​​​	​​​​​	​​​​​	​​​​​
​​​​​	​​​​​	​​​​​	​​​​​

​​	​​	​​	​
​​	​​	​​	​​

FAQ

Q: How do R05200 and R05400 differ?

A: R05200 comes from electron-beam melting or vacuum-arc melting. For R05400, powder metallurgy is the route. Let us know your forming needs and what the part will face. We can help you pick the right grade.

Q: At high heat, will it hold up in air?

A: No. Above roughly 300 °C, tantalum oxidizes in air. Gas absorption can make it brittle past 500 °C. For high-heat work, go with vacuum or an inert gas.

Q: How do you weld it?

A: A vacuum chamber is often used for TIG welding. Glove boxes work too, as long as they have high-purity argon shielding. The work has to stay very clean. Dirt left behind lets oxygen in. The metal then turns brittle.

Q: Why is the price volatile?

A: Tantalum comes from coltan. Coltan counts as a conflict mineral. Mining rules shape the price. Dodd-Frank compliance plays a part as well. Supply chain ethics matter too. So does the cost of processing it to a pure form.

Q: Can hydrogen embrittlement cause trouble for tantalum?

A: Yes. Iron or zinc in an electrolyte can couple galvanically with tantalum. Atomic hydrogen then gets pushed into it. The lattice can break down that way. Mixed-metal systems need electrical isolation.

Q: What sizes and forms are available?

A: Sheet, plate, foil or strip are all available. Thickness goes from 0.5–20 mm. Width runs 50–1200 mm. Length is 30–2500 mm. Custom sizes can be made too.

Contact Us

Send your grade, form and size requirements for pure tantalum sheet/plate to info@chdymetal.com. Shaanxi Chuanghui Daye Metal Material Co., Ltd. will review your inquiry and reply with a quote.