Niobium Foil, Strip & Ribbon | ASTM B393

Niobium Foil / Strip / Ribbon Specifications

For thicknesses above 0.1875", please refer to Niobium Plate. For widths above 6", please refer to Niobium Sheet or Plate.

ASTM B393 Niobium Grades

R04200 — Type 1

Reactor-grade unalloyed niobium covered by ASTM B393.

R04210 — Type 2

Commercial-grade unalloyed niobium for general refractory-metal applications.

R04251 — Type 3

Reactor-grade niobium alloy containing approximately 1% zirconium.

R04261 — Type 4

Commercial-grade niobium alloy containing approximately 1% zirconium.

R04220 — Type 5 RRR Niobium

RRR-grade high-purity niobium for superconducting applications where ultra-high purity is required.

ASTM notes that RRR niobium is specifically intended for superconducting applications and is not recommended as a general-purpose forming grade.

Available Foil, Strip & Ribbon Sizes

Heeger Materials supplies niobium foil, strip, and ribbon in standard and custom dimensions.

Typical foil and strip capability:

• Thickness: 0.001"–0.1875"
• Width: <6"
• Length: Custom

For selected strip and ribbon products, longer continuous lengths are available.

Standard Ribbon Example

These narrow, long-length ribbon formats are particularly useful where consistent strip geometry and continuous feed are required. (heegermaterials.com)

Niobium Foil

Niobium foil is suitable for applications requiring thin, ductile refractory-metal material with good corrosion resistance and high-temperature capability.

Custom thickness, width, length, surface condition, and annealing state can be supplied.

Niobium Strip

Niobium strip provides greater width control and continuous lengths for electrical, lamp, chemical, and fabricated component applications.

Custom slit widths and tolerances are available.

Niobium Ribbon

Niobium ribbon is available in narrow widths and long continuous lengths for precision applications such as lamp components, electrical parts, and specialized research assemblies.

Key Features

• ASTM B393 grades available
• High-purity niobium
• Nb-1Zr and selected niobium alloys
• Thin-gauge foil capability
• Narrow slit strip and ribbon
• Long continuous lengths
• Custom width and thickness
• Custom tolerances
• Annealed condition available
• Custom fabrication and slitting

Applications

Superconducting Applications

RRR-grade niobium and selected niobium alloys are used in superconducting research and specialized superconducting components.

Lamp Components

Narrow niobium strip and ribbon can be used in sodium-vapor and other specialized lamp assemblies where controlled dimensions and surface quality are important.

Chemical Processing

Niobium foil and strip may be used in selected corrosion-resistant chemical-processing applications where niobium's resistance to specific environments is required.

High-Temperature Components

Niobium and niobium alloys are used in refractory-metal components exposed to elevated temperatures, subject to atmosphere and oxidation-control requirements.

Electrical & Electronic Components

Thin niobium strip and foil can be used in selected electrical, electronic, and precision-fabrication applications.

Research & Custom Fabrication

Custom niobium foil, strip, and ribbon dimensions are available for laboratory research, prototypes, and specialized refractory-metal assemblies.

How to Select Niobium Foil or Ribbon

When requesting a quotation, provide:

Grade: R04200, R04210, Nb-1Zr, RRR Nb, or other alloy

Form: Foil, strip, or ribbon

Thickness: Required thickness and tolerance

Width: Required width and tolerance

Length: Sheet length or continuous coil/ribbon length

Condition: Annealed or other condition

Surface: As-rolled, cleaned, polished, or customer-specified

Quantity: Pieces, total length, weight, or production quantity

Documentation: COA, material certification, or other requirements

Niobium Foil/Strip/Ribbon | Nb Metal and Nb Alloys Selection Notes

Niobium Foil/Strip/Ribbon | Nb Metal and Nb Alloys belongs to the refractory metal form range and is selected for controlled material quality, application-specific specifications and reliable supply for research or production use. It is commonly used in high-temperature components, corrosion-resistant hardware, superconducting research, chemical processing, medical markers and custom refractory metal fabrication. When requesting a quote, confirm metal grade, purity, dimensions, tolerance, surface condition, temper or annealing state, drawing requirements, packaging and quantity.

Related Materials and Product Forms

For material comparison or adjacent product forms, browse all products, deposition materials, technical ceramics and Niobium.

FAQ

What grades of niobium foil are available?

Heeger Materials supplies niobium foil and strip in ASTM B393 grades including R04200, R04210, R04251, R04261, and RRR-grade niobium. Selected Nb-Zr, Nb-Ti, Nb-Ta, and other niobium alloys are also available.

What is the available thickness range?

Standard niobium foil and strip thicknesses range from approximately 0.001" to 0.1875". Custom thicknesses can be reviewed according to grade and dimensions.

What widths are available?

Foil and strip widths below 6" are standard for this product category. Wider dimensions are available as niobium sheet or plate.

Can you supply narrow niobium ribbon?

Yes. Narrow niobium ribbon is available with custom width, thickness, tolerance, and continuous length.

Is RRR niobium available?

Yes. RRR-grade niobium is available for superconducting applications requiring high-purity niobium.

What information should I provide for a quote?

Please provide the required niobium grade, thickness, width, length, tolerances, condition, surface requirement, quantity, and applicable material standard.