Tantalum Products | Refractory Metal
Tantalum Sheet
High-purity tantalum sheet (Ta ≥99.95%) manufactured through precision cold-rolling and vacuum annealing processes. Available in thicknesses from 0.05mm to 10mm, widths up to 1000mm. Our tantalum sheet offers exceptional corrosion resistance to acids, excellent biocompatibility for medical implants, and superior high-temperature stability up to 3017°C melting point. Widely used in chemical processing equipment linings, electronic capacitor anodes, aerospace heat shields, surgical implant materials, and semiconductor sputtering targets. Each sheet undergoes rigorous quality inspection including ultrasonic testing, dimensional verification, and chemical composition analysis per ASTM B708 standards.
✅ Customized-made is available
About Tantalum Sheet
Our tantalum sheet represents the pinnacle of refractory metal processing, combining exceptional material purity with precision manufacturing techniques. Each tantalum sheet undergoes a carefully controlled production process beginning with high-purity tantalum powder or electron beam refined ingots, followed by vacuum arc melting, hot forging, cold rolling with intermediate annealing, and final vacuum annealing to achieve optimal microstructure and mechanical properties. The result is a tantalum sheet product with uniform grain structure, excellent surface finish, and consistent mechanical properties throughout the entire sheet. Our tantalum sheet is trusted by leading chemical processing companies, medical device manufacturers, aerospace contractors, and electronics producers worldwide. With over 20 years of experience in refractory metal manufacturing, we guarantee the highest quality tantalum sheet products backed by comprehensive testing and certification.
Features
- 99.95%+ purity tantalum sheet
- Thickness range: 0.05mm - 10mm
- Excellent corrosion resistance to all common acids
- Biocompatible for medical implant applications
- High melting point: 3017°C (5463°F)
- Superior ductility and formability
- Vacuum annealed for optimal grain structure
- Custom sizes and tolerances available
- ASTM B708 compliant manufacturing
- Full material traceability and certification
Specifications
| Material | Tantalum (Ta), UNS R05200 / R05400 |
|---|---|
| Purity | ≥99.95% |
| Melting Point | 3017°C (5463°F) |
| Density | 16.6 g/cm³ |
| Thickness Range | 0.05mm - 10mm |
| Width | Up to 1000mm |
| Surface Finish | Cold rolled, annealed, pickled |
| Standard | ASTM B708 |
| Tensile Strength | ≥207 MPa (annealed) |
| Elongation | ≥25% (annealed) |
| Grain Size | ASTM E112, per customer specification |
| Testing | UT, dimensional, chemical analysis |
How Tantalum Sheet is Manufactured — Production Process
Our tantalum sheet production begins with high-purity tantalum raw material, either electron beam refined ingots (UNS R05200) or powder metallurgy consolidated billets (UNS R05400). The manufacturing process involves multiple stages of thermomechanical processing to achieve the desired thickness, surface finish, and mechanical properties while maintaining the exceptional purity and corrosion resistance that makes tantalum invaluable in demanding industrial applications.
The process starts with vacuum arc melting or electron beam melting to produce high-purity ingots. These ingots are then hot-forged into slabs at temperatures above 1200°C, breaking down the as-cast grain structure and creating a uniform wrought microstructure. The forged slabs undergo multiple passes of cold rolling with progressively smaller reductions, with intermediate vacuum annealing steps at 800–1100°C to relieve work hardening and restore ductility. This iterative rolling and annealing process produces sheet with excellent uniformity in both mechanical properties and microstructure.
The final cold rolling pass determines the precise thickness and surface finish, followed by a final vacuum annealing treatment to achieve the target mechanical properties (typically ≥207 MPa tensile strength and ≥25% elongation for annealed sheet). Each sheet undergoes ultrasonic inspection for internal defects, dimensional verification with calibrated micrometers, and chemical composition analysis by ICP-OES to certify compliance with ASTM B708 standards.
Applications of Tantalum Sheet
Tantalum sheet is used across multiple industries where its unique combination of corrosion resistance, biocompatibility, and high-temperature stability delivers exceptional value:
Chemical Processing Industry
Tantalum sheet is extensively used for lining chemical reactors, heat exchangers, storage vessels, and column internals in the most corrosive environments. Its exceptional resistance to virtually all acids (except hydrofluoric acid and fuming sulfuric acid at elevated temperatures) provides decades of service life where other materials fail. Tantalum-lined equipment is standard in sulfuric acid, hydrochloric acid, nitric acid, and bromine production facilities.
Electronics and Semiconductor Manufacturing
High-purity tantalum sheet serves as the raw material for tantalum capacitor anodes, which are essential components in smartphones, computers, automotive electronics, and medical devices. In semiconductor manufacturing, tantalum sheet is fabricated into sputtering targets for thin-film deposition, creating barrier layers and seed layers in copper interconnect technology.
Medical and Surgical Applications
Tantalum's excellent biocompatibility and corrosion resistance make it ideal for surgical implants including cranial plates, suture markers, radiographic markers, and porous tantalum trabecular bone implants. The material is FDA-approved for implant use and integrates well with bone tissue, making it valuable for orthopedic and dental applications.
Aerospace and Defense
In aerospace applications, tantalum sheet is used for heat shields, rocket nozzle liners, and high-temperature structural components. Its melting point of 3017°C and excellent oxidation resistance at elevated temperatures make it suitable for the most demanding thermal environments in propulsion systems and re-entry vehicles.
Nuclear and Energy
Tantalum's low neutron absorption cross-section and excellent corrosion resistance make it suitable for nuclear reactor components, including cladding and structural elements. In the energy sector, tantalum sheet is used in fuel cell components and as corrosion-resistant linings for geothermal and solar thermal power generation equipment.
Glass and Optical Manufacturing
Tantalum sheet is used in glass melting electrodes and optical coating equipment due to its high melting point and resistance to molten glass corrosion. The material maintains its structural integrity at the extreme temperatures required for specialty glass production.
Frequently Asked Questions about Tantalum Sheet
Q: What is the purity of your tantalum sheet?
A: Our tantalum sheet is manufactured with a minimum purity of 99.95% (Ta ≥99.95%), meeting ASTM B708 UNS R05200 (electron beam refined) or R05400 (powder metallurgy) standards. We provide full chemical composition certificates with every order.
Q: What thicknesses are available for tantalum sheet?
A: We supply tantalum sheet from 0.05mm (ultra-thin foil) to 10mm thick plate. Standard thicknesses include 0.1mm, 0.2mm, 0.5mm, 1.0mm, 2.0mm, 3.0mm, 5.0mm, and 10mm. Custom thicknesses are available upon request with tight tolerances.
Q: Can tantalum sheet be used for chemical equipment lining?
A: Yes, tantalum sheet is extensively used for lining chemical reactors, heat exchangers, and storage vessels due to its exceptional resistance to virtually all acids except hydrofluoric acid and fuming sulfuric acid at elevated temperatures. It provides decades of service life in the most corrosive environments.
Q: Is your tantalum sheet suitable for medical implants?
A: Absolutely. Our high-purity tantalum sheet meets biocompatibility requirements for surgical implants. Tantalum is FDA-approved for implant use and is commonly used in cranial plates, suture markers, radiographic markers, and porous tantalum trabecular bone implants.
Q: What quality certifications do you provide?
A: Every tantalum sheet shipment includes mill test reports (MTR) with full chemical composition, mechanical properties, dimensional verification, and ultrasonic test results. We are ISO 9001 certified and all products comply with ASTM B708 standards.
Q: Do you offer custom cutting and fabrication?
A: Yes, we provide precision cutting, laser cutting, waterjet cutting, and CNC machining of tantalum sheet to your exact specifications. We can deliver finished parts or cut-to-size blanks with tight dimensional tolerances.
