High-Purity Tantalum Wire (Ta) | Spooled & Straightened | Custom Diameters

Pure Tantalum Wire comes in various levels of purity ranging from 99% to 99.999%. HM also offers tantalum alloy wire, including Ta10W and Ta2.5W alloys. Customized dimensions are available based on your specific requirements.

High-Performance Tantalum Wires for Advanced Industries

Tantalum wires are indispensable across a wide range of critical applications, from electrolytic capacitors and vacuum furnace heating elements to precision medical implants. Processed through state-of-the-art cold drawing technologies, our unalloyed Tantalum (Ta) wires deliver a uniform grain structure, ensuring exceptional ductility and consistent physical performance.

Known for its incredibly high density, inertness to severe acids, and extreme high-melting point (2,996°C), Tantalum serves as the ultimate refractory material where standard alloys fail.

Customized Diameters & Supply Forms (Spooled vs. Straightened)

At Heeger Materials, we strictly adhere to ASTM B365 standards. To accommodate different automated manufacturing processes, we provide our Tantalum wires in two primary forms, with highly customized diameters to meet your exact engineering specifications:

• Spooled Wire (Continuous): Precision-wound on spools (DIN, ABS, or custom flanges) without tangles or twists. Ideal for automated feeding in electronic component manufacturing. Typically available for micro-wires and standard diameters.

• Straightened & Cut Wire (Rods/Pins): Expertly straightened and cut to specified lengths. Perfect for rigid support structures, heating elements, or medical staples.

• Diameter Range: 0.05 mm to 3.0 mm (Custom diameters readily available).

Tantalum and Tantalum Alloy Wire Specifications

• Materials: R05200, R05400, R05252 (Ta2.5W), R05255 (Ta10W), R05240 (Ta40Nb)
• Standard: ASTM B365, ASTM F560 (Medical Grade)
• Size: 0.004" - 0.125" diameter x L
• Purity: 99% - 99.999%

*If the diameter is >0.125”, please check our tantalum & tantalum alloy rod.

Tantalum and Tantalum Alloy Chemical Analysis

Tantalum Wire Optimized Tempers (Mechanical States)

Select the appropriate temper to match your forming or structural requirements:

• Annealed (Soft): Highly ductile, easily formed, ideal for swaging, crimping, and winding operations.

• Unannealed (Hard/As-Drawn): Provides maximum tensile strength and rigidity for structural support applications.

Surface Finish & Strict Quality Control

For continuous wire applications, surface integrity is paramount.

• Surface Quality: Chemically cleaned, uniform metallic luster. Strictly controlled to be free of die scratches, overlaps, and oxidation.

• Purity: Standard ≥ 99.95% (Trace impurities strictly controlled; Higher purity up to 99.99% available upon request).

• Certification: Fully traceable with a detailed Certificate of Analysis (COA) provided with every batch.

Tantalum Wire Applications

• Anode Leads for Tantalum Electrolytic Capacitors
• Made of tantalum yarn or tantalum mesh
• Making Tantalum Capacitors
• Medical tantalum wire can be used to suture nerves and tendons.

Tantalum Wire Packaging

The tantalum wire will be packaged in a wooden case supported with soft materials to ensure that there is no movement of the product inside the case.

Wire Gauge Conversion Chart