❖ Niobium Foil | R04200 / R04210 Cut to Size

NiTiCu supplies Niobium Foil in flat pieces, narrow strip and coils, with thickness, width, length, surface condition and edge requirements agreed for each order.

Material options include R04200 and R04210 unalloyed niobium, with 99.95% purity options available subject to the agreed chemistry and documentation requirements. Applications include vacuum technology, laboratory research, electronics and precision fabrication; suitability should be reviewed against the actual process.

Send your dimensions, quantity and application so we can review manufacturing feasibility, minimum order quantity and lead time.

✦ Custom Thickness
✦ Cut to Size
✦ 99.95% Purity Available
✦ COA / MTC / EN 10204 3.1

Request a Niobium Foil Quote or email sales@niticu.com with your requirements.

◈ Why Choose Niobium Foil?

Niobium combines a high melting point with useful formability in a suitable material condition. Its melting point is approximately 2477°C, while its density is approximately 8.57 g/cm³. Its oxide layer contributes to corrosion resistance, but compatibility depends on the process medium and operating conditions. The high-temperature atmosphere requirements are explained below.

✦ Advantage	✦ Benefit
🌡️ High Melting Point	Suitable for high-temperature and vacuum applications
🛡️ Corrosion Resistance	Performs well in many aggressive chemical environments
⚙️ Good Formability	Suitable for bending, stamping and precision forming
📐 Custom Thin Gauge	Thickness and dimensions can be customized
🧪 High-Purity Options	99.95% niobium available
🧾 Full Documentation	COA, MTC and EN 10204 3.1 available
✂️ Cut-to-Size Service	Flat pieces, strip and custom dimensions
📦 Protective Packaging	Suitable for international transportation

⚙️ Product Specifications

❖ Item	❖ Specification
Product	Niobium Foil / Nb Foil
Material	Pure Niobium
Grade	R04200 / R04210
Purity	99.95% option available
Standard	ASTM B393 requirements where applicable / Customer Specification
Form	Foil / Strip / Flat Sheet / Coil
Thickness	Custom thin gauge
Width	Customized
Length	Cut to size or continuous strip
Surface	Cold Rolled / Bright / Cleaned / Custom
Edge	Slit Edge / Cut Edge
Processing	Rolling / Annealing / Cutting / Slitting / Cleaning
Inspection	Chemistry / Dimensions / Surface
Certificate	COA / MTC / EN 10204 3.1
Packaging	Export Protective Packaging

🔬 Typical Material Properties

🔹 Property	🔹 Typical Information
⚛️ Chemical Symbol	Nb
🔢 Atomic Number	41
⚖️ Density	Approx. 8.57 g/cm³
🌡️ Melting Point	Approx. 2477°C
✨ Appearance	Silver-gray metallic
🧬 Crystal Structure	Body-Centered Cubic
🛡️ Corrosion Resistance	Excellent in many environments
⚙️ Formability	Good in suitable condition
🔬 Vacuum Performance	Suitable for many high-vacuum applications
🔧 Fabrication	Cutting, forming and welding possible

⚠️ Technical Note:
These are typical material properties rather than guaranteed values for every production batch. Final acceptance requirements should follow the agreed specification and material certificate.

🌡️ High-Temperature Use & Atmosphere

Niobium’s high melting point does not represent a guaranteed operating temperature for foil. Bare niobium reacts with oxygen and other reactive gases at elevated temperatures, which can affect its mechanical properties. High-temperature use therefore requires review of the atmosphere, including residual gases in vacuum systems and impurities in inert gas.

Provide the operating temperature, vacuum level or gas composition, exposure duration and process chemicals when requesting material for a thermal application. Uncoated niobium should not be assumed suitable for high-temperature operation in air.

❖ R04200, R04210 & 99.95% Niobium Foil

ASTM B393 identifies R04200 as Type 1 reactor-grade unalloyed niobium and R04210 as Type 2 commercial-grade unalloyed niobium. Specify the required grade separately from the purity percentage. A 99.95% purity requirement alone does not define the allowable content of each impurity or demonstrate compliance with a particular grade.

🧪 Material	🔬 Characteristics	⚙️ Typical Requirement
R04200	Reactor-grade unalloyed niobium	Specification-driven projects
R04210	Commercial unalloyed niobium	General industrial fabrication
99.95% Nb	High-purity option	Research and specialty applications
Custom Chemistry	Defined impurity limits	Critical technical projects

99.95% Niobium Foil is available subject to agreed chemistry requirements. For purity-sensitive applications, provide the required impurity limits and confirm the basis used to report purity, including whether tantalum and interstitial elements are included.

Individual limits may be required for O · N · H · Ta · Fe · W · Mo. Chemistry and acceptance requirements should be agreed before production and checked against the material certificate.

When ASTM B393 is required, state the applicable edition and requirements in the purchase specification. Foil dimensions, tolerances, material condition and inspection requirements should also be agreed explicitly.

⚙️ Precision Rolling, Annealing & Forming

Controlled rolling reduces niobium to the required thickness, while annealing influences ductility, hardness and grain structure. Formability depends on material chemistry, rolling and annealing condition, grain structure, thickness and component geometry.

For bent, stamped or drawn parts, send a drawing with the required bend radii, tolerances and surface criteria. For precision cut parts or narrow strip, also specify grain direction, flatness, edge condition and acceptable defect criteria. These requirements should be reviewed together before the final material condition is selected.

Very thin material requires careful handling because creases, scratches, contamination and edge damage can affect subsequent processing.

📐 Available Supply Forms

Depending on the application, Niobium Foil can be supplied in several different forms.

📐 Supply Form	⚙️ Typical Use
▰ Flat Pieces	Laboratory and prototype projects
▬ Foil Sheet	Flat precision components
▥ Narrow Strip	Continuous forming and manufacturing
🌀 Coil	Repeat or higher-volume processing
✂️ Cut-to-Size Pieces	Drawing-based projects

NiTiCu supports both small prototype quantities and larger production requirements.

✨ Surface & Dimensional Control

Surface quality is especially important for thin material.

Depending on your project, the product may be supplied with:

✦ Cold-Rolled Surface
✦ Bright Surface
✦ Cleaned Surface
✦ Annealed Condition
✦ Customer-Specified Finish

📏 Control Item	🔧 Available Options
Thickness	Custom gauge
Width	Standard or precision slit
Length	Cut length or continuous
Flatness	According to agreed specification
Surface	Rolled / Cleaned / Custom
Edge	Slit / Trimmed
Tolerance	Customer specified
Defect Criteria	Agreed before production

💡 Cost Optimization:
Tighter tolerances are not always better. Choosing tolerances according to the real function of the component can reduce both production cost and lead time.

🏭 Niobium Foil Applications

The combination of temperature resistance, corrosion resistance, formability, and specialty electrical properties gives niobium a wide range of possible applications.

🏭 Industry	🔬 Typical Applications
⚡ Electronics	Capacitor components and electrical parts
🔬 Vacuum Technology	Vacuum assemblies and shields
🧪 Chemical Processing	Corrosion-resistant components
🧫 Laboratory & R&D	Material research and prototypes
🌡️ High-Temperature Systems	Heat-resistant components
⚙️ Precision Manufacturing	Stamped, bent and formed parts
🩺 Medical Research	Specialty research components
🎨 Decorative Applications	Anodized niobium components

For superconducting, nuclear, medical, semiconductor, or highly controlled vacuum applications, the exact material specification should be confirmed before ordering.

🔍 Quality Inspection

As a professional Niobium Foil Supplier, NiTiCu can arrange inspection according to agreed order requirements.

🔬 Inspection	✅ Availability
Chemical Composition	✓
Thickness	✓
Width & Length	✓
Surface Condition	✓
Dimensional Tolerance	✓
Visual Inspection	✓
Packaging Inspection	✓
Third-Party Inspection	On Request

Inspection requirements should ideally be confirmed before production.

🧾 Certificates & Traceability

Depending on the order, available documentation may include:

🧾 Certificate of Analysis — COA

📄 Material Test Certificate — MTC

✅ EN 10204 3.1

🧪 Chemical Composition Report

📐 Dimensional Inspection Report

🏢 Third-Party Inspection Report

If special documentation is required, please inform us before placing the order.

📦 Protective Packaging

Thin foil needs protection against creasing, bending, scratches, edge damage and contamination. Packaging can include clean wrapping, rigid support, moisture protection, export cartons and wooden cases, according to the order and transportation requirements.

❖ Related Niobium Products

For projects requiring other niobium supply forms, see Niobium Rod · Niobium Wire · Niobium Plate and Sheet.

✉️ Contact Us | Request a Quote

Send your dimensions, grade, purity, quantity and drawing using the checklist below. Our team will review the material, manufacturing feasibility, minimum order quantity, lead time and quotation.

❖ Information Recommended for Quotation

✉️ Required Information	📋 Example
🧪 Grade	R04200
🔬 Purity	99.95%
📏 Thickness	Required Gauge
📐 Width	Required Width
📏 Length	Cut Length / Coil
⚖️ Quantity	Pieces / kg / Coil
🎯 Tolerance	If Required
✨ Surface	Rolled / Cleaned / Custom
🧾 Certificate	COA / MTC / EN 10204 3.1
📎 Drawing	Recommended

For thermal or chemical service, also include the operating temperature, vacuum level or gas composition, exposure duration and process medium.

💬 Talk Directly with NiTiCu

📱 WhatsApp

✉️ Sales Email

sales@niticu.com

For RFQs, drawings, purchase requirements, pricing, and delivery questions.

📧 General Inquiries

info@niticu.com

For technical questions, product information, cooperation, and general inquiries.

✦ Custom Niobium Foil Made to Your Specification

Small prototype quantities and production orders are welcome. Minimum order quantity and delivery timing are confirmed with the quotation.

Niobium Foil

Niobium Foil | R04200 / R04210 Cut to Size

Advanced Metals, Engineered for What Comes Next.