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Pure Tantalum Rods & Wires - Core Materials for Precision Industrial & Laboratory Applications

R05200 pure tantalum rods and wires are rod-shaped and filamentous tantalum-based materials processed through multiple core precision procedures including vacuum melting, forging, hot rolling, precision drawing/cold rolling, and annealing, using high-purity commercially pure tantalum as the raw material. The R05200 grade has a tantalum content of ≥ 99.95% and extremely low impurity content, making it suitable for scenarios with strict purity requirements. As core categories of tantalum materials, pure tantalum rods and wires inherit the extreme corrosion resistance of tantalum, exhibiting strong tolerance to most strong acids, alkalis, molten salts, and high-temperature gases except hydrofluoric acid. They can operate stably for a long time in harsh media without contaminating contact substances. With a melting point as high as 2996℃, they can serve for a long time below 1400℃ and withstand high temperatures of 1800℃ for a short time, maintaining excellent mechanical properties and stability in high-temperature environments. Meanwhile, they possess superior electrical and thermal conductivity, balanced strength and ductility, and can achieve precision machining and forming. Widely used in high-end fields such as the electronics industry, aerospace, chemical equipment, laboratory research, and medical devices, they are core substrates for precision components and special electronic components.

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    Product specification

    Product Parameters
    Product Information

    Item

    Regular Parameter Details (Tantalum Rods/Wires)

    Custom Parameter Range

    Diameter

    Tantalum rods: 3mm—20mm; Tantalum wires: 0.1mm—3.0mm

    Tantalum rods: 20mm and above; Tantalum wires: 3mm and above, customizable according to customer requirements

    Length

    Tantalum rods: 100mm—3000mm (single piece); Tantalum wires: 5m—500m/spool

    Tantalum rods: Customizable on demand (single piece, fixed-length cutting); Tantalum wires: Customizable spool length and winding method

    Tolerance Range

    Tantalum rod diameter tolerance: ±0.02mm—±0.2mm; Tantalum wire diameter tolerance: ±0.001mm—±0.01mm (complying with ASTM B708 American Standard)

    Tolerance can be customized according to customer precision requirements to meet ultra-high precision scenarios

    Surface Roughness

    Polished surface: Ra≤0.3μm; Bright annealed surface: Ra≤0.8μm; Pickled surface: Ra≤1.2μm

    Surface roughness can be customized on demand; wires can achieve mirror-level finish
    Product Name  Pure Tantalum Rods, Pure Tantalum Wires
    Brand Name  Yunjie
    Model  R05200 (American Standard)
    Material  High-purity tantalum (commercially pure tantalum, complying with American Standard R05200 grade)
    Manufacturing Process  Vacuum melting, forging, hot rolling, cold rolling/drawing, annealing, finishing, surface treatment
    Minimum Tantalum Content  Meeting American Standard R05200 high-purity grade requirements (Ta content ≥ 99.95%)
    Density  16.6g/cm³
    Advantages  Extreme corrosion resistance, excellent high-temperature stability, superior electrical and thermal conductivity, ultra-pure material without impurities, high strength and toughness, strict dimensional accuracy, excellent surface finish, strong processability
    Surface Conditions  Pickled surface, bright annealed surface, cold-rolled/drawn as-rolled surface, polished surface
    Delivery Conditions  Soft state (M), hard state (Y)
    Processing Services  Dimension customization (diameter, length), cutting, turning, grinding, drilling, welding processing
    Minimum Order Quantity  1kg (calculated based on actual orders; preferential policies available for bulk purchases; wires can be ordered by spool)

    Classification

    High-Quality Pure Tantalum Rods (1)
    • Classification by Product Form
      •Pure Tantalum Rods: Classified by diameter into thin tantalum rods (3mm—5mm), medium-thick tantalum rods (5mm—20mm), and thick tantalum rods (20mm and above). Thin tantalum rods feature high precision and good ductility, suitable for precision instrument shafts and small structural parts; medium-thick tantalum rods have stable mechanical properties and strong processability, suitable for chemical accessories and aerospace components; thick tantalum rods have high structural strength, mostly used for large equipment substrates and customized chemical components.
      •Pure Tantalum Wires: Classified by diameter into micro-filaments (0.1mm—0.5mm), thin tantalum wires (0.5mm—2.0mm), and medium-thick tantalum wires (2.0mm—3.0mm and above). Micro-filaments have extremely high precision and excellent electrical conductivity, suitable for electronic components and superconducting materials; thin tantalum wires balance strength and flexibility, usable for medical devices and precision sensors; medium-thick tantalum wires have good processability, suitable for high-temperature equipment accessories and welding filler wires.
    • Classification by Processing State
    • Classification by Surface Treatment Method

    Specification Selection Table and Composition Table

    Pure Tantalum Plates & Sheets Specification Selection Table
    Chemical Composition Table

    Product Type

    Specification Range

    Core Features

    Applicable Scenarios

    Laboratory-Grade Precision Pure Tantalum Rods & Wires

    Tantalum rods: 3.0mm—5.0mm, length 100mm—3000mm; Tantalum wires: 0.1mm—1.0mm, spool length 5m—500m

    Ultra-pure material (Ta≥99.95%), minimal dimensional tolerance, smooth and impurity-free surface, excellent ductility, outstanding electrical conductivity

    Precision laboratory equipment, special material R&D substrates, micro-sensors, university research projects, superconducting material tests

    Industrial-Grade General-Purpose Pure Tantalum Rods & Wires

    Tantalum rods: 5mm—10mm, length 100mm—2000mm; Tantalum wires: 1.0mm—3.0mm, spool length 10m—50m

    High dimensional accuracy, clean surface, excellent corrosion resistance, stable processability, bulk supply available

    High-temperature electronic components, conventional chemical equipment parts, precision instrument structural parts, basic medical device components, welding filler wires

    Industrial-Grade Heavy-Duty Pure Tantalum Rods

    Diameter 10mm—20mm and above, length 100mm—1000mm (single piece)

    High strength, high toughness, stable high-temperature performance, good weldability, strong structural stability

    Large chemical reactor accessories, aerospace structural components, core components of high-temperature equipment, large experimental device substrates, special anti-corrosion projects

    Customized Pure Tantalum Rods & Wires

    Customized according to customer drawings (diameter, length, surface roughness, processing form)

    Strong adaptability, performance optimized on demand, high degree of personalization, strict matching with customer equipment and process requirements

    Special specification electronic devices, customized high-temperature equipment, high-end equipment supporting parts, special experimental devices, special engineering construction

    Grade

    Impurity Content, Max. (≤)

    Ta

    Fe

    Si

    Ni

    C

    N

    O

    H

    Nb

    R05200

    ≥99.95

    0.01

    0.005

    0.01

    0.01

    0.01

    0.015

    0.0015

    0.1

    W

    Mo

    Ti

    　

    　

    　

    　

    　

    0.05

    0.02

    0.01

    　

    　

    　

    　

    　

    Characteristics

    01
    Extreme Corrosion Resistance
    Exhibits strong stability in harsh environments such as strong acids (except hydrofluoric acid), alkalis, molten salts, and high-temperature oxidizing atmospheres. The dense oxide film formed on the surface can effectively resist corrosion without contaminating the contact medium, making it the preferred material for precision components in strong corrosive environments.
    advantage-2
    02
    Excellent High-Temperature Stability
    Pure tantalum has a melting point of up to 2996℃, capable of long-term stable operation below 1400℃ and short-term resistance to 1800℃ high temperature. It can maintain good mechanical properties and corrosion resistance in high-temperature environments, adapting to medium-high temperature and extreme high-temperature working conditions.
    advantage-2
    03
    Ultra-Pure Material Without Impurities
    The R05200 grade has a tantalum content of ≥ 99.95% and extremely low impurity content, which will not chemically react with contact materials, ensuring the safety and stability of product use. Especially suitable for scenarios with strict material purity requirements such as high-precision electronics, laboratories, and superconductivity.
    advantage-2
    04
    Outstanding Processability
    Combining high strength and good ductility, it can realize various mechanical processing such as cutting, turning, grinding, drilling, and welding. Wires can be further drawn and bent into shape, meeting the preparation needs of precision components of different shapes and specifications.
    advantage-2
    05
    High-Precision Dimensional Control
    Through precision drawing, cold rolling, and finishing processes, the diameter tolerance can be controlled at the micron level, with good dimensional consistency and high straightness, which can accurately match the assembly requirements of high-end equipment and improve the performance stability of end products.
    advantage-2
    06
    Superior Electrical and Thermal Conductivity
    Excellent electrical and thermal conductivity, far exceeding that of ordinary stainless steel and most non-ferrous metals, suitable for electronic components, heat dissipation parts, superconducting materials, and other scenarios requiring high electrical and thermal conductivity.
    advantage-2

    Production Process

    1. Raw Material Preparation: Tantalum ore is processed through mineral processing, enrichment, reduction, and other processes to extract high-purity tantalum sponge, which is then refined and melted multiple times in a vacuum arc furnace to produce high-purity tantalum ingots (uniform composition, extremely low impurity content) complying with American Standard R05200 grade.
    2. Forging/Hot Rolling Processing: The tantalum ingot is heated to a specific temperature and then forged or hot-rolled to eliminate internal defects of the ingot, improve material density, and roll into rod-shaped billets, laying the foundation for subsequent precision processing.
    3. Cold Rolling/Drawing Processing: The tantalum rod billet is subjected to multiple passes of cold rolling to refine the size, while the tantalum wire is processed through precision drawing technology, with precise control of the deformation amount per pass, gradually processing to near-finished product specifications to ensure diameter accuracy and surface quality.
    4. Intermediate Annealing: Intermediate annealing is inserted during the cold rolling/drawing process to eliminate processing internal stress, restore material plasticity, avoid cracking, deformation, and other problems in subsequent processing, and ensure processing continuity.
    High-Quality Pure Tantalum Rods (1)
    High-Quality Pure Tantalum Rods (1)

    Production Process

    1. Finished Product Annealing: According to the customer's required processing state (soft state, hard state), the cold-rolled/drawn tantalum rods and wires undergo finished product annealing treatment, with precise control of annealing temperature, holding time, and cooling rate to ensure that the material performance meets the requirements.
    2. Surface Treatment: The annealed tantalum rods and wires are subjected to surface treatment, which can choose pickling (removing oxide scale), bright annealing (improving surface finish), or polishing (achieving mirror effect) to ensure that the surface quality meets application requirements.
    3. Finishing and Inspection: The finished products are subjected to fixed-length cutting, straightening, and winding (for wires) to make their dimensions and shapes meet customer requirements; subsequent strict inspections are carried out, including composition re-inspection, dimensional accuracy testing, surface quality testing, mechanical performance testing, etc., to ensure that the product quality meets American Standard requirements, with attached material inspection reports and quality certificates.

    Application Fields

    01
    Electronics Industry
    Semiconductor device electrodes, superconducting material wires, precision capacitor pins, high-temperature electronic component pins, high-end battery tabs. Relying on high purity, high conductivity, and high-temperature stability, it ensures the stable operation of electronic devices in extreme environments.
    6511419c2763338526
    02
    Chemical Industry
    Stirring shafts for reactors with strong corrosive media, valve cores for chemical pipelines, probes for precision chemical instruments, connectors for strong acid and alkali treatment equipment. Utilizing extreme corrosion resistance to extend equipment service life and improve production safety.
    6511419c2763338526
    03
    Laboratory Research
    Electrodes for large precision experimental devices, special material R&D substrates, connectors for high-temperature and high-pressure reaction vessels, probes for corrosive environment simulation tests. The pure material is free from impurity contamination, ensuring experimental accuracy and data reliability.
    6511419c2763338526
    04
    Aerospace
    High-temperature components of spacecraft, corrosion-resistant and wear-resistant shafts of engines, conductive connectors of spacecraft, accessories of thermal protection systems. Combining high strength and extreme environment tolerance, it adapts to the strict requirements of the aerospace field.
    6511419c2763338526
    05
    Medical Devices
    Electrodes for precision medical instruments, wires in contact with biological fluids, connectors for implantable medical devices (requiring special processing). Resistant to biological fluid corrosion, the material is safe and non-toxic, complying with medical device hygiene standards.
    6511419c2763338526
    06
    New Energy Field
    Electrodes for high-temperature fuel cells, conductive components for hydrogen energy-related equipment, wires for superconducting energy storage equipment, conductive components for high-end batteries. Adapting to the purity and corrosion resistance requirements of new energy materials, it improves the performance and safety of energy equipment.
    6511419c2763338526

    Send Inquiry

    As a professional expert providing solutions for pure tantalum (R05200, complying with ASTM B708 American Standard) and various metal foils/strips, pipes, rods/wires, plates, and crucibles, Baoji Yunjie is always at your service! For a full range of metal materials and products such as titanium, tantalum, niobium, zirconium, nickel, aluminum, tungsten, and cobalt, please feel free to contact us!