Tantalum & Ta-W Alloy Rod/Bar | ASTM B365 Compliant|High Purity

Tantalum rods have unique properties such as high melting point, corrosion resistance, and biocompatibility, making them the preferred material in medical, mechanical parts, aerospace, and laboratory equipment industries. Tantalum rods can be shaped into a tantalum round bar and a tantalum square rod.

High-Performance Tantalum Rods & Bars for Precision Machining

Heeger Materials provides premium Tantalum (Ta) and Tantalum-Tungsten (Ta-W) alloy rods, manufactured through rigorous forging, swaging, and drawing processes. Our rods feature a highly uniform, defect-free grain structure, making them the ultimate raw material for CNC machining critical components used in corrosive chemical processing, high-temperature vacuum furnaces, and aerospace superalloys.

Tantalum Rod Specifications

 *If the diameter is <0.125”, please check our tantalum wire.

Available Material Grades

We offer unalloyed pure tantalum as well as tungsten-alloyed variations to meet your specific mechanical requirements:

• Pure Tantalum (RO5200/RO5400): ≥ 99.95% purity. Offers the highest ductility and ultimate corrosion resistance (inert to nearly all acids, including Aqua Regia).

• Ta-2.5W Alloy (RO5252): Contains 2.5% Tungsten. Provides higher yield strength than pure tantalum while maintaining excellent corrosion resistance and weldability.

• Ta-10W Alloy (RO5255): Contains 10% Tungsten. Engineered for extreme high-temperature environments. Offers superior tensile strength, hardness, and creep resistance compared to unalloyed Ta.

Dimensional Capabilities & Tolerances

All rods and bars are manufactured in strict accordance with ASTM B365 standards. We offer highly customizable dimensions to minimize your material waste during secondary machining:

• Diameter Range: 3.0 mm to 100+ mm (From thin rods to heavy billets)

• Length: Standard cut-to-length or custom lengths available

• Tolerance: Standard ASTM tolerances applied; ultra-high precision tolerances (e.g., h7/h9) available upon request

• Shape: Round rods, square bars, and hexagonal bars available

Tempers & Surface Finish

• Mechanical State: Available in Annealed (soft, ideal for deep drawing/forming) or Unannealed/Cold-Worked (hard, for maximum structural rigidity).

• Surface Options: Centerless ground (smooth, shiny, and precise), turned, or chemically cleaned. Guaranteed free of cracks, internal voids, or surface oxidation.

Engineering Note: Machining Tantalum Rods

Tantalum is known for its "gummy" machining characteristics, similar to pure copper, which can lead to galling or tool welding. For turning or milling our Ta rods, we highly recommend using high-speed steel (HSS) or uncoated carbide tools with highly positive rake angles. Copious amounts of water-soluble coolants must be used continuously to flush chips and achieve a clean surface finish.

Tantalum Rod Applications

• Electronics: Used as electrode materials for capacitors.
• Aerospace: Used to manufacture engine components and gas turbines.
• Chemical industry: Used as an ideal material for handling strong acids and alkalis.
• Medical: Used in the production of artificial joints and medical devices.

Tantalum Rod Packaging

The Tantalum Rod and Tantalum Bar are carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Tantalum Rod In Stock