Hafnium Wire

Hafnium Wire

Hafnium Wire

Material: Hf+Zr≥99.95%, Zr≤2.5%

Standard: AWS A5.24/A5.24M, ASME SFA-5.24/SFA-5.24M

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
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Hafnium Wire is drawn from hafnium metal, with excellent corrosion resistance, high-temperature tolerance, and high strength. It is widely applied in aerospace, nuclear energy, electronics, and high-temperature alloys. As a leading supplier and manufacturer of premium hafnium products, Heeger Materials leverages advanced technology to deliver high-purity hafnium and hafium alloys wires for wide ranges of applications.

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Hafnium Wire Data Sheet

Reference:HMHF1499
Material:Hf+Zr≥99.95%, Zr≤2.5%
Standard:AWS A5.24/A5.24M, ASME SFA-5.24/SFA-5.24M
Purity:99%-99.95%
Dimension:Diameter: 0.5-6 mm, or customized
Length: TBD (To Be Determined)
Product Form:Straight, Coil, or Spooled
Temper:Annealed and Unannealed

Hafnium Wire

Hafnium (Hf) is a lustrous, silver-gray transition metal with a very high melting point (2230°C) and high density (13.31 g/cm3). Hafnium Wire is drawn from high-purity hafnium metal or its alloy, exhibiting excellent performance in high-temperature environments. It is commonly used as a plasma emitter for plasma-cutting machine electrodes. HM can supply high-quality hafnium and hafnium alloy wires of various shapes and sizes.

  • Hafnium Wire
    Hafnium (Hf) Wire-Coil
  • Hafnium Wire
    Hafnium (Hf) Wire-Spool

Hafnium Wire Material Chemical Composition

Chemical Composition (%)
Hf+ZrZrSiMoAlNiCHON
≥99.95≤1≤0.001≤0.001≤0.0005≤0.005≤0.003≤0.001≤0.015≤0.003
CuSnFeTiMnCrSbPbMgNb
≤0.0005≤0.0005≤0.01≤0.001≤0.0005≤0.001≤0.0005≤0.0005≤0.0005≤0.0005

Hafnium Wire Specifications

PurityHf+Zr≥99.9%, Zr≤2.5% or Customized
DimensionsSingle WireCoil WireAccording to customer’s requirements.
1.07, 1.2, 1.5 2.0mm dia. × 1000mm (Straight Wire)1.07, 1.2, 1.5, 1.6, 2.0 mm dia. x L
φ0.1~3mm × Lmm (Customized)
ShapeIt can be straight, in coils, or on spools.

Hafnium Wire Production Process

  • Melting and Casting: Hafnium sponge is melted and cast using an electron beam furnace or purified through iodization, followed by melting and casting to produce high-purity hafnium ingots.
  • Forging and Rolling: The hafnium ingots are heated and then subjected to forging and rolling at high temperatures to form preliminary rods.
  • Spin Forging: Depending on the bar’s diameter, the appropriate spinning machine and die are selected. Multiple spin forging processes are performed to achieve the desired dimensions.
  • Drawing: After intermediate annealing, the bar’s surface is evenly coated with graphite emulsion, which is then dried before being processed through a drawing die.
  • Heat Treatment: The drawn hafnium wire undergoes heat treatment to relieve processing stresses and enhance its material properties.
  • Finishing & Inspection: Steps such as cutting, polishing, cleaning, and strict quality inspection ensure that the product meets specifications.

Hafnium Wire Applications

  • Plasma Cutting Electrodes: Hafnium wire is commonly used as the electrode material for plasma cutting machines.
  • Nuclear Industry: Hafnium wire is widely used in nuclear reactors’ control rods and shielding materials.
  • Electronics Industry: Hafnium wire is a lead material in electronic devices, especially at high temperatures and frequencies.
  • Alloy Additives: Hafnium wires are used as additives to improve the alloys’ mechanical properties and corrosion resistance.

Hafnium Wire Packaging

The Hafnium Wire is 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.

Metal Packing

Hafnium Properties

ItemValue
Atomic number72
Crystal structureHexagonal close packed
Electronic structureXe 4f¹⁴ 5d² 6s²
Valences shown4
Atomic weight( amu )178.49
Thermal neutron absorption cross-section( Barns )103
Photo-electric work function( eV )3.9
Natural isotope distribution( Mass No./% )179/ 13.8
Natural isotope distribution( Mass No./% )176/ 5.2
Natural isotope distribution( Mass No./% )180/ 35.2
Natural isotope distribution( Mass No./% )174/ 0.2
Natural isotope distribution( Mass No./% )177/ 18.5
Natural isotope distribution( Mass No./% )178/ 27.1
Atomic radius – Goldschmidt( nm )0.159
Ionisation potential( No./eV )3/ 23.3
Ionisation potential( No./eV )1/ 7.0
Ionisation potential( No./eV )2/ 14.9
Ionisation potential( No./eV )4/ 33.3
ItemValue
Material conditionHard
Material conditionSoft
Poisson’s ratio0.26
Poisson’s ratio0.26
Bulk modulus( GPa )109
Bulk modulus( GPa )109
Tensile modulus( GPa )141
Tensile modulus( GPa )141
Hardness – Vickers( kgf mm⁻² )150-180
Tensile strength( MPa )445
Tensile strength( MPa )745
Yield strength( MPa )365
Yield strength( MPa )240
ItemValue
Electrical resistivity( µOhmcm )32.2@20@20°C
Superconductivity critical temperature( K )0.128
Temperature coefficient( K⁻¹ )0.0044@0-100°C
ItemValue
Boiling point( °C )4602
Density( gcm⁻³ )13.1@20°C
ItemValue
Melting point( C )2227
Latent heat of evaporation( J g⁻¹ )3700
Latent heat of fusion( J g⁻¹ )122
Specific heat( J K⁻¹ kg⁻¹ )146@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )23@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )6@0-100°C

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To customize your hafnium wire, please provide the following details:

  1. Diameter (for the wire)
  2. Length (Indicate the length you need)
  3. Purity (Specify the purity of material required.)
  4. Form (Straight, coiled, or spooled)
  5. Surface Finish (polished, rough, oxide-coated, etc.)
  6. Quantity of the products you need
  7. 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 hafnium and hafnium 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 molybdenum 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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