Hafnium Crystal Bar

Hafnium Crystal Bar

Hafnium Crystal Bar

Material: Hf+Zr≥99.95%, Zr≤2.5%

Purity: 99%-99.95%

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
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Hafnium Crystal Bar is a high-purity hafnium material produced by iodination, with a purity of 99.9% or higher. It is available in diameters ranging from 20 to 40 mm, with customizable lengths. As a leading supplier and manufacturer of premium hafnium products, Heeger Materials leverages advanced technology to deliver high-purity hafnium crystal bars for wide ranges of applications.

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Hafnium Crystal Bar Data Sheet

Reference:HMHF1498
Material:Hf+Zr≥99.95%, Zr≤2.5%
Purity:99%-99.95%
CAS:7440-58-6
Dimension:Diameter: 20-40 mm
Length: <1000 mm (Can be cut into blocks with a length of 25-51 mm, or customized.)

Hafnium Crystal Bar

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 Crystal Bar is a high-purity hafnium material obtained through iodination. HM can supply high-quality hafnium crystal bars with high purity above 99.9%. The diameters range from 20-40 mm and the lengths can be cut to meet specific customer requirements.

  • Hafnium Crystal Bar
  • Hafnium Crystal Bar
  • Hafnium Crystal Bar

Hafnium Crystal 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 Crystal Bar Applications

Hafnium Crystal Bar exhibits excellent corrosion resistance, high-temperature stability, and high durability, making it ideal for high-performance applications in extreme environments. It is widely applied in the following areas:

  • Semiconductor Coatings
  • Optical Coatings
  • Plasma Cutting
  • Metallic Glasses

Hafnium Crystal Bar Packaging

The Hafnium Custom Parts are 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.

  • Hafnium Crystal Bar Packing HM 4
  • Hafnium Crystal Bar Packing HM 3
  • Hafnium Crystal Bar Packing HM 2
  • Hafnium Crystal Bar Packing HM 1

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 crystal bars, please provide the following details:

  1. Purity
  2. Diameter
  3. Length
  4. Weight
  5. Shape
  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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