Hafnium Plate/Sheet/Disc

Hafnium Plate/Sheet/Disc

Hafnium Plate/Sheet/Disc

Material: Hf+Zr≥99.95%, Zr≤2.5%

Standard: ASTMB776

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
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Hafnium Plate/Sheet/Disc is made from high-purity hafnium metal, with excellent corrosion resistance, high-temperature tolerance, and excellent neutron absorption. It is widely applied in aerospace, nuclear energy, electronics, and high-temperature equipment. As a leading supplier and manufacturer of premium hafnium products, Heeger Materials leverages advanced technology to deliver high-purity hafnium and hafium alloys plates, sheets, and discs for wide ranges of applications.

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Hafnium Plate/Sheet/Disc Data Sheet

Reference:HMHF1502
Material:Hf+Zr≥99.95%, Zr≤2.5%
Standard:ASTMB776
Purity:99%-99.95%
Dimension:Plate: (1.0-50)mm Thickness × (20-100)mm Width × L
Sheet: (0.1-0.9)mm Thickness × (30-80)mm Width × L
Disc: Customized
Temper:Annealed and Unannealed

Hafnium Plate/Sheet/Disc

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 Plate/Sheet/Disc is made of high-purity hafnium metal or its alloy, exhibiting excellent resistance to high temperatures, corrosion, and radiation. Its high melting point and good mechanical strength make it stable and reliable in extreme environments. HM can supply high-quality hafnium and hafnium alloy plates, sheets, and discs with various specifications for multiple applications.

  • Hafnium Plate
    Hafnium (Hf) Plate
  • Hafnium Sheet
    Hafnium (Hf) Sheet
  • Hafnium Disc
    Hafnium (Hf) Disc

Hafnium Plate/Sheet/Disc 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 Plate/Sheet/Disc Production Process

  • Preparation of Raw Materials: selection of high-purity hafnium raw materials
  • Melting: melting the hafnium feedstock at high temperatures, usually under vacuum or inert gas protection.
  • Casting: the molten hafnium is introduced into a mold and cooled into a hafnium ingot.
  • Hot Rolling: the hafnium ingot is heated to the appropriate temperature and then hot rolled, gradually thinning it into sheets.
  • Cold Rolling: the hot-rolled hafnium sheet is cold rolled to improve its surface quality and dimensional accuracy further.
  • Annealing: Hafnium plates are annealed in a vacuum or under inert gas to remove internal stresses and improve material properties.

Hafnium Plate/Sheet/Disc Surface Finish

Depending on the intended applications, hafnium plates, sheets, and discs have three main surface finishes as follows:

  • Black: The surface is “as swaged” or “as drawn”, retaining a coating of processing lubricants and oxides.
  • Cleaned: The surface is chemically cleaned to remove all lubricants and oxides.
  • Ground: The surface is centerless to remove all coating and achieve precise dimensions control.

Hafnium Plate/Sheet/Disc Applications

  • Nuclear Industry: Hafnium has excellent neutron absorption and is commonly used in nuclear reactors’ control rods and protection devices.
  • Electronic Materials: Hafnium is used to manufacture cathodes for X-ray tubes and electrodes for high-voltage discharge tubes because of its good electron-emitting properties.
  • Aerospace: Hafnium’s high-temperature oxidation and high-temperature resistance make it ideal for use in manufacturing rocket nozzles and spacecraft shielding materials.

Hafnium Plate/Sheet/Disc Packaging

The Hafnium Plate/Sheet/Disc 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 plate, hafnium sheet, or hafnium disc, please provide the following details:

  1. Diameter (for discs)
  2. Thickness (for plates, sheets, and discs)
  3. Width and Length (for plates and sheets)
  4. Tolerances (for thickness, diameter, width, or length)
  5. Purity (Specify the purity of material required.)
  6. Surface Finish (polished, rough, oxide-coated, etc.)
  7. Quantity of the products you need
  8. 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 Plate/Sheet/Disc Products

Heeger Metal offers a wide range of custom plate, sheet, and disc products, available in materials like tungsten, molybdenum, titanium, and nickel alloys. Our precision-engineered products are ideal for various industrial applications, including aerospace, electronics, and energy. Whether you need flat plates, thin sheets, or precision-cut discs, we provide tailored solutions with exceptional strength, durability, and high-performance characteristics to meet your specific requirements.

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