High-Purity Tantalum Disc (Ta Disc) | ASTM B708

Tantalum Disc Description

Heeger Materials supplies high-purity Tantalum Discs (Ta Discs) manufactured from tantalum and tantalum-tungsten alloys for demanding industrial, research, chemical, electronic, and high-temperature applications.

Our tantalum discs are produced from high-quality tantalum material through controlled rolling and precision cutting processes to provide consistent dimensions and uniform material structure. Products can be supplied in R05200, R05400, Ta-2.5W (R05252), and Ta-10W (R05255), with purity levels ranging from 99.9% to 99.995% depending on the required grade and specification.

Standard and custom tantalum discs are available in annealed or unannealed conditions and can be manufactured according to ASTM B708 requirements.

Tantalum Disc Specifications

• Property	Specification

  Product

  Tantalum Disc / Ta Disc

  Material

  Tantalum & Tantalum-Tungsten Alloy

  Grades

  R05200, R05400, R05252 (Ta-2.5W), R05255 (Ta-10W)

  Purity

  99.9%–99.995%

  Standard

  ASTM B708

  Diameter

  0.1"–36"

  Thickness

  0.04"–5"

  Condition

  Annealed / Unannealed

  Dimensions

  Standard or Custom

  Surface Finish

  Available according to requirements

Tantalum Disc In Stock

Tantalum and Tantalum Alloy Chemical Analysis

Available Tantalum Grades

R05200 Pure Tantalum

R05200 is unalloyed tantalum commonly selected for applications requiring the characteristic corrosion resistance, ductility, and high-temperature performance of tantalum.

R05400 Pure Tantalum

R05400 is another unalloyed tantalum grade available for applications requiring high-purity tantalum products manufactured to controlled specifications.

R05252 – Ta-2.5W

R05252 contains approximately 2.5% tungsten and is selected when increased mechanical strength is required while retaining many of the useful characteristics of tantalum.

R05255 – Ta-10W

R05255, commonly known as Ta-10W, contains approximately 10% tungsten and provides higher strength than unalloyed tantalum for demanding applications.

If you are unsure which tantalum grade is suitable for your application, send us your operating conditions, dimensions, quantity, and performance requirements.

Key Features of Tantalum Discs

• High-purity tantalum up to 99.995%
• Excellent corrosion resistance
• High melting point and high-temperature stability
• Low vapor pressure
• Good ductility and formability
• Pure tantalum and Ta-W alloy options
• ASTM B708 material available
• Annealed and unannealed conditions
• Custom diameters and thicknesses
• Custom tolerances and surface finishes available

Tantalum Disc Applicaitons

• Tantalum discs are used in applications requiring excellent corrosion resistance, high-temperature stability, chemical compatibility, or specialized refractory-metal performance.

  Typical applications include:

  • Chemical processing equipment
  • High-temperature furnace components
  • Vacuum furnace applications
  • Electronics and semiconductor equipment
  • Research and laboratory equipment
  • Aerospace components
  • Medical and specialized engineering applications
  • Fabricated tantalum components
  • Corrosion-resistant equipment and assemblies

Custom Tantalum Disc Manufacturing

In addition to standard sizes, Heeger Materials supplies custom tantalum discs according to customer drawings and technical requirements.

Customization options may include:

• Custom diameter
• Custom thickness
• Dimensional tolerances
• Annealed or unannealed condition
• Surface finish
• Pure tantalum or tantalum-tungsten alloy
• Special packaging
• Custom quantities

For precision components, please send your drawing or provide the required grade, diameter, thickness, tolerance, surface finish, quantity, and application when requesting a quotation.

How to Select the Right Tantalum Disc

When ordering tantalum discs, the following information should be considered:

Grade
Select R05200, R05400, R05252 (Ta-2.5W), R05255 (Ta-10W), or another specified tantalum grade according to your application requirements.

Purity
Specify the required tantalum purity or chemical composition limits.

Diameter and Thickness
Provide the required dimensions and dimensional tolerances.

Condition
Specify whether annealed or unannealed material is required.

Surface Finish
Indicate any surface roughness, polishing, cleaning, or finishing requirements.

Quantity
Provide the number of pieces required for laboratory, prototype, or production quantities.

Providing complete specifications helps us prepare a more accurate quotation and confirm manufacturability.

Why Choose Heeger Materials for Tantalum Discs?

Heeger Materials supplies tantalum and tantalum alloy products for research and demanding industrial applications.

We offer:

• High-purity tantalum materials
• ASTM B708 material options
• Multiple tantalum and Ta-W grades
• Wide dimensional range
• Custom sizes and tolerances
• Annealed and unannealed conditions
• Prototype and production quantities
• Technical documentation upon request
• Custom fabrication support
• Worldwide supply

Tantalum Disc Packaging

The tantalum disc is carefully handled to prevent damage during storage and transportation and to preserve the quality of our product in its original condition. Products will be packed in wooden cases supported with soft materials to ensure that the products thus packed will not shift inside the cases.