Tantalum Foil/Strip/Ribbon

Tantalum Foil Strip and Ribbon

Tantalum Foil/Strip/Ribbon

Standard: ASTM B365,  ASTM F560 (Medical Grade), ASTM B708

Material: R05200, R05400, R05252, R05255, R05240

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Tantalum Foil/Strip/Ribbon is a thin sheet of tantalum material known for its excellent corrosion resistance, high melting point, and outstanding thermal and electrical conductivity. As a leading supplier and manufacturer of premium tantalum products, Heeger Materials leverages advanced machining centers to deliver high-precision tantalum and tantalum alloy foil/strip/ribbon for wide ranges of applications.

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Tantalum Foil/Strip/Ribbon Data Sheet

Reference:HMTA0001
Dimensions:Thickness: 0.001″-0.1875″
Width: <6″
Length: TBD (To Be Determined)
Standard:ASTM B708, ASTM B365,  ASTM F560 (Medical Grade)
Material:R05200, R05400, R05252, R05255, R05240
Purity:99%, 99.9%, 99.95%, 99.99%, 99.999%
Temper:Annealed or Unannealed

Tantalum Foil and Tantalum Strip

Tantalum and Tantalum Alloy foil, strip, and ribbon are high-performance materials made of high-purity tantalum, known for their excellent corrosion resistance, high melting point, and good ductility. These materials are produced through rolling and cold-working processes, followed by annealing for improved strength. Tantalum’s unique properties make it ideal for use in harsh chemical environments, high-temperature applications, and electronic components like capacitors. It is also biocompatible, making it suitable for medical implants.

Tantalum Foil and Strip Specifications

ProductThickness (mm)Width (mm)Length (mm)
Foil0.025～0.09<150>200
0.1～0.550～300100～2000
Strip0.0251～1.5≤50000
  • Tantalum Foil
    Tantalum Foil
  • Tantalum strip
    Tantalum Strip/Ribbon
  • Tantalum Ribbon
    Tantalum Strip/Ribbon

Tantalum Foil, Strip, and Ribbon Tolerances

Tantalum foil, strip, and ribbon are produced with precise tolerances to meet specific application requirements. Tolerances typically cover thickness, width, and length, ensuring that the material fits the intended design and performance criteria. Custom tolerances can be specified depending on the customer’s needs.

Thickness (mm)Tolerances for Thickness (mm)Width (mm)Tolerances for Width (mm)Length (mm)Tolerances for Length (mm)
Grade 1Grade 2
0.025～0.07±0.005±0.00670～150±2.0≥1000—
>0.07～0.09±0.006±0.00870～150±2.0≥1000—
0.1～0.20±0.015±0.0250～300±2.0100～2000±3.0
>0.2～0.30±0.02±0.0350～300±2.0100～2000±3.0
>0.30～0.50±0.03±0.0450～500±2.0100～2000±3.0
>0.50～0.80±0.04±0.0650～500±2.050～1200±3.0
>0.80～1.0±0.06±0.0850～500±2.050～1200±3.0

Tantalum Foil/Strip/Ribbon Production Process

Tantalum foil, strip, and ribbon are made of high-purity tantalum and tantalum alloy ingots through hot rolling, cold rolling, and annealing to achieve the desired thickness, strength, and ductility. Additional treatments such as polishing and chemical etching may be applied to meet specific requirements for particular applications. Here is the typical production process:

  • Raw Material Selection: Tantalum ingots or powder are selected based on purity and quality requirements.
  • Melting and Casting: Tantalum is melted in a vacuum or inert gas atmosphere and cast into ingots.
  • Hot Rolling: The ingot is heated and passed through rollers to reduce the thickness and achieve the desired shape.
  • Cold Rolling: Further reduction of thickness is achieved at room temperature, improving the material’s surface finish and mechanical properties.
  • Annealing: The material is heat-treated to relieve internal stresses and improve ductility.
  • Pickling and Polishing: The surface is cleaned using chemical treatments to remove oxides and improve appearance.
  • Final Cutting: The material is cut into foil, strip, or ribbon forms, depending on the specific application requirements.

Tantalum  Foil/Strip/Ribbon Applications

  • Electronics: Tantalum foil/strip/ribbon, known for its excellent conductivity and stability, is commonly used to manufacture capacitors, vacuum tubes, and other high-quality electronic devices.
  • Semiconductor Industry: Due to its superior conductivity and corrosion resistance, tantalum foil/strip/ribbon is widely used to produce semiconductor devices.
  • Aerospace: Tantalum foil/strip/ribbon demonstrates outstanding stability under high-temperature and high-pressure conditions, making it ideal for use in aerospace engines and nuclear reactor fuel rods.
  • Laboratory Equipment: Tantalum foil/strip/ribbon, with its good ductility and toughness, is frequently used to manufacture various laboratory apparatus.
  • Superalloys and Electron Beam Melting: Tantalum foil/strip/ribbon is employed in producing superalloys and in electron beam melting equipment.
  • Metallurgy and Machining: In metallurgy and machining, tantalum foil/strip/ribbon is commonly used to manufacture high-strength and corrosion-resistant components.

Tantalum and Tantalum Alloy

  • R05200, unalloyed tantalum, electron-beam furnace vacuum-arc melt, or both
  • R05400, unalloyed tantalum, powder-metallurgy consolidation.
  • R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.
  • R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both.
  • R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt.

Tantalum Foil/Strip/Ribbon Packaging

The Tantalum Foil/Strip/Ribbon is carefully placed in wooden cases or cartons, with additional support from soft materials, to prevent shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Metal Packing

Tantalum Properties

ItemValue
Atomic number73
Crystal structureBody centred cubic
Electronic structureXe 4f¹⁴ 5d³ 6s²
Valences shown2,3,4,5
Atomic weight( amu )180.9479
Thermal neutron absorption cross-section( Barns )22
Photo-electric work function( eV )4.1
Natural isotope distribution( Mass No./% )180/ 0.012
Natural isotope distribution( Mass No./% )181/ 99.988
Atomic radius – Goldschmidt( nm )0.147
Ionisation potential( No./eV )1/ 7.88
Ionisation potential( No./eV )2/ 16.2
ItemValue
Material conditionUnannealed (Hard)
Material conditionAnnealed (Soft)
Poisson’s ratio0.342
Poisson’s ratio0.342
Bulk modulus( GPa )196.3
Bulk modulus( GPa )196.3
Tensile modulus( GPa )185.7
Tensile modulus( GPa )185.7
Hardness – Vickers( kgf mm⁻² )200
Hardness – Vickers( kgf mm⁻² )90
Tensile strength( MPa )760
Tensile strength( MPa )172-207
Yield strength( MPa )705
Yield strength( MPa )310-380
ItemValue
Electrical resistivity( µOhmcm )13.5@20@20°C
Superconductivity critical temperature( K )4.47
Temperature coefficient( K⁻¹ )0.0035@0-100°C
Thermal emf against Pt (cold 0C – hot 100C)( mV )0.33
ItemValue
Boiling point( °C )5425
Density( gcm⁻³ )16.6@20°C
ElementValue
Melting point( °C )2996
Latent heat of evaporation( J g⁻¹ )4165
Latent heat of fusion( J g⁻¹ )174
Specific heat( J K⁻¹ kg⁻¹ )140@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )57.5@0-100
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )6.5@0-100°C

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To customize your tantalum foil, strip, and ribbon, please provide the following details:

  1. Thickness x Width x Length (for the foil, strip, and ribbon)
  2. Tolerances (allowable variations in thickness, width, and length)
  3. Purity of the material
  4. Quantity of the products you need
  5. Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of tantalum and tantalum alloy products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

DFARS (Defense Federal Acquisition Regulation Supplement) compliance is primarily concerned with the sourcing of materials for defense-related applications in the United States. According to DFARS, certain materials used in defense must be sourced from the United States or qualifying countries.

If you have specific tantalum materials that are subject to DFARS, please let us know in advance and we will confirm.

At Heeger Materials Inc., we take this responsibility seriously. We adhere to all applicable laws and regulations, including Section 1502 of the Dodd-Frank Act. Our company operates with a strict code of ethics and is committed to only partnering with suppliers who share our dedication to responsible sourcing. We support the initiatives and programs aimed at promoting “conflict-free” supply chains and work diligently to ensure that our products meet these standards.

Heeger Materials Inc., established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of tantalum and tantalum alloys. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

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Other Tantalum Products

Heeger Metal offers a comprehensive range of tantalum and tantalum alloy products, renowned for their outstanding corrosion resistance, high melting point, and stability in harsh environments. These characteristics make them ideal for demanding applications in the aerospace, electronics, and chemical processing industries. Our high-purity tantalum materials deliver exceptional performance and reliability in challenging conditions.

Other Foil/Strip/Ribbon Products

Heeger Metal provides a wide range of metal foil, metal strip, and metal ribbon products. Our foil and strip materials are precision-engineered for applications requiring high strength, flexibility, and thermal stability, ideal for electronics, aerospace, and industrial sectors. Whether you need custom metal ribbons or thin metal strips, our products deliver superior performance and reliability.

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