Skip to Content

Niobium Bar

Niobium Bar
Interested in Niobium Bar?

Eagle Alloys Corporation (EAC) is the leading global supplier of Niobium bar.  EAC stocks a wide variety of sizes in Niobium bar and can supply custom bar sizes with short lead times.

Eagle Alloys Corporation can supply Niobium bar from 0.125” Dia up to 8” Dia.  For smaller diameters EAC can supply Niobium wire as small as 0.003” Dia.  If you do not see your Niobium bar size listed below, please contact our courteous sales team to assist you. Please view or print our Niobium stock list for our complete stock sizes and capabilities.

Eagle Alloys Corporation is an ISO Certified Corporation and have been supply the highest quality Niobium bar for over 35 years.

In addition to commercially pure Niobium EAC also supplies Reactor Grade Niobium, Niobium Zirconium Alloys, Niobium Hafnium Alloy, Niobium Tungsten Alloy, Niobium Titanium Alloy.

Niobium is typically supplied to meet the requirements of ASTM-B-392, ASTM-B-393, ASTM-B-394, AMS 7850, ASTM-B-654, ASTM-B-655, RO4200 Type 1, RO4210 Type 2, RO4251 Type 3, RO4261 Type 4, ASTM-B-884, C129Y, FS-85.


Eagle Alloys supplies DRC Conflict Free material.  EAC only sources our Niobium bar from Level 1 smelters.

Niobium applications include sputtering targets, nuclear reactors, gas pipelines, jet engines, chemical processing equipment, particle accelerators, turbine blades, automotive components, capacitors, superconductors, sensitive magnetic imaging equipment, vacuum furnaces, reactor vessels, heat exchangers, sodium lamps, jewelry, steel additive, and optics.

Niobium is less corrosion-resistant than tantalum at high temperature. Niobium is not attacked by nitric acid up to 100 °C, but aggressively attacked by mixture of nitric and hydrofluoric acids. Hot, concentrated hydrochloric, sulfuric, and phosphoric acids attack it, but hot, concentrated nitric acid does not. Niobium is unaffected at room temperature by most acids. It is attacked by alkaline solutions to some extent at all temperatures.  Due to its low capture cross section for thermal neutrons, Niobium has application in the nuclear industry. Niobium can be electrically heated and anodized to a wide variety of colors that makes it very attractive in the jewelry industry.

Eagle Alloys Niobium Bar Capabilities

Size Range
Max Size
Typical Stock Size
Niobium Bar
0.125" Dia up to 8" Dia
Contact Us
20 ft. Long
*Custom sizes upon request

Niobium Bar Stock Sizes Same Day Shipping (subject to prior sale)

Same Day Shipping
Niobium Bar
  • 0.015" Dia x 50' coil
  • 0.018" Dia x 50' coil
  • 0.020" Dia x 50' coil
  • 0.020" Dia x 72" Lg
  • 0.030" Dia x 50' coil
  • 0.040" Dia x 50' coil
  • 0.050" Dia x 50' coil
  • 0.060" Dia x 50' coil
  • 0.080" Dia x 50' coil
  • 0.125" Dia x 72" Lg
  • 0.250" Dia x 72" Lg
  • 0.375" Dia x 72" Lg
  • 0.500" Dia x 72" Lg
  • 0.625" Dia x 72" Lg
  • 0.750" Dia x 72" Lg
  • 1" Dia x 72" Lg
  • 1.500" Dia x 72" Lg
  • 2" Dia x 72" Lg

Common Industry Applications

STATEMENT OF LIABILITY - DISCLAIMER Any suggestion of product applications or results is given without representation or warranty, either expressed or implied. Without exception or limitation, there are no warranties of merchantability or of fitness for particular purpose or application. The user must fully evaluate every process and application in all aspects, including suitability, compliance with applicable law and non-infringement of the rights of others Eagle Alloys Corporation and its affiliates shall have no liability in respect thereof.


Contact Eagle Alloys

Toll Free: 800.237.9012
Local: 423.586.8738
Fax: 423.586.7456


Company Headquarters:
178 West Park Court
Talbott, TN 37877

Or fill out the form below:

"*" indicates required fields

Drop files here or
Max. file size: 32 MB.
    *Hold ctrl to select multiple files.
    Do you want to receive future emails?*
    This field is for validation purposes and should be left unchanged.

    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply