Tantalum Crucible

Tantalum Crucible

Tantalum Crucible

Standard: ASTM B365

Material: R05200, R05400, R05252, R05255, R05240

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
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Tantalum Crucible is manufactured incomplicance with ASTM B365 standards. Custom dimensions and shapes are available to meet individual requirements. Heeger Materials also supplies other tantalum parts (including heaters, heat insulation screens, sheets, supports, etc.) applied in the process of sapphire growth and rare-earth melting.

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Or email us at sales@heegermaterials.com.

Tantalum Crucible Data Sheet

Reference:HMTA0013
Dimensions:Outer Diameter: 10-500 mm
Height: 10-600 mm
Or customized according to specific drawings
Standard:ASTM B365
Material:R05200, R05400, R05252, R05255, R05240
Purity:99%, 99.9%, 99.95%, 99.99%, 99.999%
Form:Seamless or Welded
Temper:Annealed or Unannealed

Tantalum Crucible

Tantalum Crucibles are primarily used in material processing, melting, and synthesis under extreme conditions. They are available in two main forms: seamless and welded. The seamless tantalum crucible is produced using a seamless process that meets requirements. The welded tantalum crucible is made from flat-rolled material through an automatic or semiautomatic fusion welding process without filler metal.

  • Tantalum Crucible 2
  • Tantalum Crucible 1

Tantalum Crucible Dimensions

Tantalum Crucible dimension diagram

HM can provide customized services based on specific customer requirements. The standard dimensions are as follows:

Diameter (mm)Wall Thickness (mm)Height (mm)
30~502~1030-500
50~1003~15
100~1503~15
150~2005~20
200~3008~20
300~4008~30
400~4508~30
450~5008~30

Tantalum  Crucible Applications

  • High-temperature materials processing: Tantalum crucibles are widely used in the processing of materials at high temperatures.
  • Metal melting: Tantalum crucibles are essential for melting metals like platinum, gold, and other high-temperature alloys.
  • Chemical synthesis: Tantalum crucibles are commonly used in chemical reactors where corrosion resistance is critical, such as in the production of specialty chemicals and pharmaceuticals.
  • Semiconductor industry: Tantalum crucibles are used for refining semiconductor materials such as polysilicon and gallium arsenide.

Tantalum and Tantalum Alloy

  • R05200, unalloyed tantalum, electron-beam furnace vacuum-arc melt, or both
  • R05400, unalloyed tantalum, powder-metallurgy consolidation.
  • R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.
  • R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both.
  • R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt.

Tantalum Crucible Packaging

The Tantalum Crucible is carefully placed in wooden cases or cartons, with additional support from soft materials, to prevent shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Metal Packing

Tantalum Properties

ItemValue
Atomic number73
Crystal structureBody centred cubic
Electronic structureXe 4f¹⁴ 5d³ 6s²
Valences shown2,3,4,5
Atomic weight( amu )180.9479
Thermal neutron absorption cross-section( Barns )22
Photo-electric work function( eV )4.1
Natural isotope distribution( Mass No./% )180/ 0.012
Natural isotope distribution( Mass No./% )181/ 99.988
Atomic radius – Goldschmidt( nm )0.147
Ionisation potential( No./eV )1/ 7.88
Ionisation potential( No./eV )2/ 16.2
ItemValue
Material conditionUnannealed (Hard)
Material conditionAnnealed (Soft)
Poisson’s ratio0.342
Poisson’s ratio0.342
Bulk modulus( GPa )196.3
Bulk modulus( GPa )196.3
Tensile modulus( GPa )185.7
Tensile modulus( GPa )185.7
Hardness – Vickers( kgf mm⁻² )200
Hardness – Vickers( kgf mm⁻² )90
Tensile strength( MPa )760
Tensile strength( MPa )172-207
Yield strength( MPa )705
Yield strength( MPa )310-380
ItemValue
Electrical resistivity( µOhmcm )13.5@20@20°C
Superconductivity critical temperature( K )4.47
Temperature coefficient( K⁻¹ )0.0035@0-100°C
Thermal emf against Pt (cold 0C – hot 100C)( mV )0.33
ItemValue
Boiling point( °C )5425
Density( gcm⁻³ )16.6@20°C
ElementValue
Melting point( °C )2996
Latent heat of evaporation( J g⁻¹ )4165
Latent heat of fusion( J g⁻¹ )174
Specific heat( J K⁻¹ kg⁻¹ )140@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )57.5@0-100
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )6.5@0-100°C

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To customize your tantalum crucible, please provide the following details:

  1. Wall Thickness x Diameter x Height
  2. Purity of the material
  3. Quantity of the crucible 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 tantalum and tantalum 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 tantalum 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 Tantalum Products

Heeger Metal offers a comprehensive range of tantalum and tantalum alloy products, renowned for their outstanding corrosion resistance, high melting point, and stability in harsh environments. These characteristics make them ideal for demanding applications in the aerospace, electronics, and chemical processing industries. Our high-purity tantalum materials deliver exceptional performance and reliability in challenging conditions.

Other Crucible Products

Heeger Metal specializes in high-quality customized metal crucibles and alloy crucibles, designed to withstand extreme temperatures for melting and casting applications. Made from durable materials, our crucibles ensure excellent performance in industries such as metallurgy and material science. For more details or custom solutions, feel free to contact us.

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