Hafnium Rod/Bar

Hafnium Rod/Bar

Hafnium Rod/Bar

Material: Hf+Zr≥99.95%, Zr≤0.2%/0.5%/1.0%

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
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Hafnium Rod/Bar 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 rods and bars for wide ranges of applications.

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Hafnium Rod/Bar Data Sheet

Reference:HMHF1500
Material:Hf+Zr≥99.95%, Zr≤0.2%/0.5%/1.0%
Purity:99%-99.95%
Dimension:φ 1-350 mm
Length: 30-1100 mm
or customized
Temper:Annealed and Unannealed

Hafnium Rod

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 Rod is often alloyed with other metals such as tantalum, niobium, and zirconium during manufacturing to improve their mechanical properties and durability. It exhibits excellent performance in high-temperature environments and is commonly used as neutron-absorbing material in nuclear reactors, as well as in high-temperature equipment and engine components. HM can supply high-quality hafnium and hafnium alloy rods and bars with various specifications for multiple applications.

  • Hafnium Rod
  • Hafnium Rod

Hafnium Rod/Bar 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 Rod/Bar Specifications

Material Hf+Zr≥99.95%, Zr≤0.2%/0.5%/1.0%
Diameter (inch)Length (inch)
.010″ to .040″up to 36″ maximum
.042″ to .100″up to 48″ maximum
.105″ to .300″up to 72″ maximum
.305″ to .500″up to 36″ maximum

Hafnium Rod/Bar Production Process

  • Ingot: Hafnium and its alloys are melted into ingots.
  • Forging: The ingots are heated and forged into shapes like rods or sheets.
  • Hardening and Extrusion: The material is hardened through quenching and extruded into precise forms.
  • Spin Forging: Rotating pressure refines the shape and improves strength.
  • Annealing: The material is heated and cooled to relieve stress and improve ductility.
  • Straightening: Any bending is corrected for uniformity.
  • Coreless Grinding: The rods are ground to enhance surface finish and dimensional accuracy.

Hafnium Rod/Bar Applications

  • Nuclear Industry: Hafnium has good neutron absorption properties, so hafnium rods are commonly used in nuclear reactors as part of the control rods to help regulate the flow of neutrons in the reactor and maintain stable reactor operation.
  • Aerospace: Hafnium rods are used in the aerospace industry to make high-temperature alloys and engine components.
  • Electronics and Semiconductor Industry: Hafnium rods are used to manufacture semiconductor devices, especially in integrated circuits. It is used as a key material in transistor and fiber optic technology to enhance device performance and stability.
  • Chemical Industry: Hafnium rods’ corrosion resistance has led to their use in the chemical industry as a material for the manufacture of high-temperature, corrosion-resistant equipment and apparatus, such as reactors and piping.
  • Scientific Research and Testing: Hafnium rods are widely used in materials science research and the melting of high-temperature alloys.

Hafnium Rod/Bar Packaging

The Hafnium Rod/Bar 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 rod or hafnium bar, please provide the following details:

  1. Diameter x Length (for rods)
  2. Length x Width x Height (for bars)
  3. Quantity of the rods or bars you need
  4. 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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Other Rod/Bars Products

Heeger Metal supplies refractory metal and alloy rods/bars made from high-performance materials like tungsten, molybdenum, and tantalum. These rods offer excellent strength, high melting points, and resistance to wear and corrosion, making them ideal for aerospace, electronics, and high-temperature applications. Available in various sizes, they can be customized to meet specific needs.

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