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Tantalum Rod/Bar

Tantalum Rod/Bar are generally cylindrical forms of tantalum, suitable for a variety of machining processes. The choice between a bar and a rod would typically depend on size specifications, with bars usually being larger. When procuring tantalum products, it’s crucial to understand the specific requirements of your application to select the right form and purity of the material. EPI Materials are able offer a broad range of tantalum products including Tantalum Foil/Strip, Tantalum Sheet/Plate, Tantalum Tube/Pipe, Tantalum Wire, etc.

Description

Specifications

Diameter1’’- 8’’ (25 mm-200 mm)
LengthLess than 10 feet (3000 mm)
MaterialUNS R05200, UNS R05400
StandardASTM B365, ASTM F560
Purity≥99.95% or 99.99%

EPI Materials specialize in providing specific alloys and forms of metals like tantalum to suit specialized applications. When procuring tantalum rods or other tantalum-based products, referencing standards such as ASTM B365 (for general use) and ASTM F560 (for medical applications) ensures the material meets specific quality, purity, and performance criteria. These standards help manufacturers, buyers, and users ensure they’re getting a product that will perform to the expected specifications.

UNS Grade R05200 – Unalloyed tantalum, vacuum melted

UNS Grade R05400 – Unalloyed tantalum, powdermetallurgy consolidation

Ingot Chemical Requirements (Composition, max weight %)
ElementR05200R05400
O0.0150.03
N0.010.01
C0.010.01
H0.00150.0015
Nb0.10.1
Mo0.020.02
W0.050.05
Ti0.010.01
Si0.0050.005
Fe0.010.01
Ni0.010.01
Taremainderremainder

* EPI Materials also offers Tantalum with an impressive 99.95% purity, making it ideal for a wide range of critical applications.

Mechanical Properties for Rod, Annealed Condition per ASTM B365
MaterialsUltimate Tensile Strength, min, MPaYield Strength, min, MPaElongation, min, % 1 in. (25.4 mm) Gage Length
Unalloyed tantalum (R05200 and R05400)17210325

The chemical requirements of ASTM F560 are the same as ASTM B708.

Mechanical Properties for Tantalum Rod, Annealed Condition per ASTM F560
ConditionDiameter, mm [in.]Minimum Ultimate Tensile Strength, MPaMinimum Yield Strength,(0.2% offset) MPaMinimum Elongation,%
Cold Workedall4803451
Annealedover 3.14 to 63.5 [0.125’’ to 2.5’’]17014025
Permissible Variations in Dimensions for Rod
Diameter, in. (mm) Tolerance, in. (mm)
0.125 to 0.187 excl (3.175 to 4.750) 0.003 (0.076)
0.187 to 0.375 excl (4.750 to 9.525) 0.004 (0.102)
0.375 to 0.500 excl (9.525 to 12.70) 0.005 (0.127)
0.500 to 0.625 excl (12.70 to 15.88) 0.007 (0.178)
0.625 to 0.750 excl (15.88 to 19.05) 0.008 (0.203)
0.750 to 1.000 excl (19.05 to 25.40) 0.010 (0.254)
1.000 to 1.500 excl (25.40 to 38.10) 0.015 (0.381)
1.500 to 2.000 excl (38.10 to 50.80) 0.020 (0.508)
2.000 to 2.500 excl (50.80 to 63.50) 0.030 (0.762)
  • Sourcing & Verification: EPI Materials responsibly sources tantalum of the highest purity, ensuring it meets RMAP compliant procurement standards.
  • Powder Metallurgy: Utilizing cutting-edge powder metallurgy, we transform high-purity tantalum powder into a form ready for rod production. This method allows for consistent quality and structural integrity.
  • Reduction: Chemical reduction techniques are applied to ensure the tantalum’s uniform morphology and purity.
  • Molding & Compacting: The refined tantalum powder is loaded into molds, compacted under pressures reaching 2000 bar, creating a ‘green compact’.
  • Sintering: The compact undergoes sintering in specialized furnaces at temperatures exceeding 2000°C. Here, the tantalum achieves its density and unique microstructure.
  • Forming: To provide the final product its desired shape and characteristics, methods such as forging, rolling, or drawing might be employed.
  • Quality Assurance: Each tantalum rod undergoes stringent quality checks to ensure it aligns with our rigorous purity and quality standards.
  • Customization: Beyond our standard diameters, ranging from 1” to 5”, EPI Materials offers tailored sizes and tolerances to cater to specific client needs.
  • Packaging & Delivery: Once approved, the tantalum rods are securely packaged, ready for safe and prompt delivery to our clients globally.

EPI Materials prides itself on its state-of-the-art tantalum rod production process, guaranteeing premium quality with every order. Your trust fuels our commitment to excellence.

  • High-Temperature Furnaces: Due to its high melting point and resistance to corrosion, tantalum is an excellent material for components in high-temperature furnaces.
  • Capacitance Gauges: Tantalum’s electrical properties make it suitable for certain electronic applications, including capacitance gauges.
  • Sputtering Targets: In the field of thin-film deposition, tantalum can be used as a sputtering target in physical vapor deposition processes.
  • Cathodes: Tantalum’s electrical and thermal properties make it suitable for use as a cathode in certain types of electronic devices.
  • Implants in Medical Applications: ASTM F560 standard denotes that tantalum can be used for surgical implants due to its biocompatibility. This means the body does not reject it, and it doesn’t react or break down over time within the body.
  • Machined Parts, Screws, Nuts: Given its ductility and machinability (especially when alloyed or treated correctly), tantalum can be formed into various custom components, including screws, nuts, and other machined parts. These parts can be used in environments where resistance to corrosion and high temperatures is critical.

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