Hafnium Tube/Pipe

Hafnium Tube/Pipe

Hafnium Tube/Pipe

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 Tube/Pipe 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 tubes and pipes for wide ranges of applications.

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Hafnium Tube/Pipe Data Sheet

Reference:HMHF1501
Material:Hf+Zr≥99.95%, Zr≤0.2%/0.5%/1.0%
Purity:99%-99.95%
Dimension:Out Diameter: 0.05-200 mm
Wall Thickness: 0.05-80 mm
Length: 30-6000 mm
or customized
Temper:Annealed and Unannealed

Hafnium Tube/Pipe

Hafnium (Hf) is a lustrous, silver-gray transition metal with a very high melting point (2230°C) and high density (13.31 g/cm3). During manufacturing, Hafnium Tube/Pipe is often alloyed with other metals such as tantalum, niobium, and zirconium 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 tubes and pipes with various specifications for multiple applications.

  • Hafnium Tube

Hafnium Tube/Pipe 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 Tube/Pipe Production Process

  • Melting and Casting: Hafnium or hafnium alloys are usually melted into ingots by vacuum self-consuming arc melting.
  • Forging and Extrusion: The ingot is heated and forged to make a preliminary tube blank, which is then further processed into the desired size and shape through the extrusion process.
  • Cold Rolling and Drawing: Cold rolling and drawing are key steps in producing hafnium tubes. Cold rolling improves the mechanical properties and surface quality of the tubes, while drawing is used to further reduce the diameter and wall thickness of the tubes.
  • Heat Treatment: Annealing is usually carried out in a high vacuum environment to avoid oxidation and contamination and to remove stresses generated during processing.
  • Finishing & Inspection: Steps such as cutting, polishing, cleaning, and strict quality inspection ensure that the product meets specifications.

Hafnium Tube/Pipe Applications

  • Nuclear Energy: Hafnium tubes/pipes are commonly used to manufacture fuel cladding and nuclear reactor components because of their excellent resistance to radiation and high temperatures, and their ability to withstand the extreme environments found in nuclear reactors.
  • Aerospace: Hafnium tubes/pipes are commonly used to make spacecraft thermal protection systems, propulsion systems, etc., due to their high melting point and corrosion resistance.
  • Electronics: Hafnium tubes/pipes are used in the electronics industry to produce high-performance electronic components.
  • Chemical Equipment: Hafnium tubes/pipes are widely used in reactors, pipes, and vessels in high-temperature environments.

Hafnium Tube/Pipe Packaging

The Hafnium Tube/Pipe 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 tube or hafnium pipe, please provide the following details:

  1. Dimesnions (Outer Diameter, Inner Diameter, Wall Thickness, Length)
  2. Tolerance (Indicate the acceptable tolerance for the dimensions)
  3. Surface Finish (polished, rough, etc.)
  4. Quantity of the tubes or pipes 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 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 Tube/Pipe Products

Heeger Metal provides high-quality custom tube and pipe products in a variety of materials including stainless steel, titanium, nickel alloys, and more. Our precision tubes and pipes are available in various sizes and forms, ideal for applications in industries such as aerospace, automotive, energy, and chemical processing. Whether you require seamless tubes, welded pipes, or custom-cut solutions, we deliver products designed to meet your exact specifications with superior strength, corrosion resistance, and long-lasting performance.

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