High-Purity Pure Niobium Foils & Strips - China Factory & Suppliers for Industrial Applications
Product specification
📋 Product Specifications
| Product Name | Pure Niobium Foils, Pure Niobium Strips |
| Brand Name | Yunjie |
| Model | R04200 (ASTM Standard) |
| Material | High-Purity Niobium (Commercially pure niobium, complying with ASTM R04200 grade) |
| Processes | Vacuum Melting, Hot Rolling, Cold Rolling, Annealing, Finishing, Surface Treatment |
| Minimum Niobium Content | Meets ASTM R04200 high-purity grade standards (Nb content ≥ 99.95%) |
| Density | 8.57 g/cm³ |
| Advantages | Excellent high-temperature stability, superior corrosion resistance, good electrical conductivity, ultra-pure material, excellent ductility, high dimensional accuracy, fine surface finish |
| Surface Conditions | Pickled Surface, Bright Annealed Surface, Cold-Rolled Bright Surface |
| Delivery Conditions | Soft State (M), Hard State (Y) |
| Processing Services | Customized dimensions (width, thickness, length), slitting, cutting, stamping forming |
| Minimum Order Quantity | 1 kg (Calculated based on actual orders; preferential terms available for bulk purchases) |
⭐ Key Advantages
🌡️
High-Temperature Stability
Maintains structural integrity and mechanical performance in extreme thermal environments.
🛡️
Superior Corrosion Resistance
Highly resistant to acids, alkalis, and harsh chemical environments, ensuring long service life.
⚡
Good Electrical Conductivity
Suitable for electronic and superconducting applications requiring reliable electrical performance.
🔬
Ultra-Pure Material (≥99.95% Nb)
Complies with ASTM R04200 high-purity grade, ensuring consistent and traceable quality.
📐
High Dimensional Accuracy
Precision-controlled thickness and width tolerances for demanding engineering applications.
✨
Excellent Ductility & Surface Finish
Outstanding formability and fine surface quality, suitable for complex fabrication processes.
⚙️ Manufacturing Process
Vacuum Melting›
Hot Rolling›
Cold Rolling›
Annealing›
Finishing›
Surface Treatment
🔧 Surface & Delivery Conditions
🪟 Surface Conditions
- Pickled Surface
- Bright Annealed Surface
- Cold-Rolled Bright Surface
📦 Delivery Conditions
- Soft State (M)
- Hard State (Y)
✂️ Processing Services
- Customized width, thickness & length
- Slitting & cutting
- Stamping forming
📊 Material Standard
- ASTM R04200 Grade
- Nb Content ≥ 99.95%
- Density: 8.57 g/cm³
❓ Frequently Asked Questions
💬What is the ASTM R04200 standard for niobium foils and strips?
ASTM R04200 is the internationally recognized standard for commercially pure niobium. It specifies a minimum niobium content of ≥ 99.95%, ensuring consistent chemical purity, mechanical properties, and suitability for high-performance industrial applications such as superconductors, aerospace components, and chemical processing equipment.
💬What surface conditions are available for your niobium foils?
We offer three surface conditions: Pickled Surface (chemically cleaned for oxide-free finish), Bright Annealed Surface (smooth, reflective finish achieved through controlled annealing), and Cold-Rolled Bright Surface (precision rolled for tight tolerances and high surface quality). The choice depends on your downstream processing or application requirements.
💬Can you provide custom dimensions for niobium foils and strips?
Yes. We offer full customization of width, thickness, and length. Additional processing services including slitting, cutting to length, and stamping forming are available. Please provide your technical drawings or dimensional requirements when placing an inquiry, and our team will confirm feasibility and lead time.
💬What is the minimum order quantity (MOQ) and are there bulk discounts?
The minimum order quantity is 1 kg, calculated based on actual order weight. This low MOQ is ideal for R&D, prototyping, and small-batch production. For bulk or long-term procurement, preferential pricing terms are available. Please contact us directly to discuss volume pricing and delivery schedules.
💬What delivery states are available — soft state or hard state?
Both delivery states are available. Soft State (M) refers to fully annealed niobium with maximum ductility and formability, suitable for deep drawing and complex forming operations. Hard State (Y) retains work-hardened properties with higher tensile strength, suitable for applications requiring greater rigidity and dimensional stability.
💬What industries and applications are pure niobium foils commonly used in?
Pure niobium foils and strips are widely used in superconducting radio-frequency (SRF) cavities for particle accelerators, aerospace and defense components, chemical processing equipment requiring corrosion resistance, medical devices, capacitor manufacturing, and advanced electronics. The ultra-high purity and excellent ductility make them ideal for demanding precision applications.
Classification
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Classification by Product Form
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Classification by Material Performance
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Classification by Machining Precision
Specification Selection Guide & Chemical Composition Standards
|
Product Type |
Specifications |
Core Features |
Application Scenarios |
|
Ultra-Thin Metal Discs |
Thickness starting from 0.03mm, diameter 2–50mm |
Ultra-thin & flexible, ultra-high precision, burr-free, excellent conductivity |
Semiconductor chip accessories, micro electronic contacts, precision sensors, miniature medical devices |
|
Conventional Metal Discs |
Thickness 0.1–2mm, diameter 50–100mm |
High structural strength, good flatness, superior batch consistency |
High-end tooling fixtures, equipment sealing gaskets, conductive connectors, aerospace precision components |
|
Standard Metal Cups |
Thickness 0.076–0.254mm, flat/spherical/conical shape |
High pressure & deformation resistance, high fitting accuracy, wear resistance & durability |
Supporting for diamond wire drawing molds, PCD/PCBN super-hard cutting tools |
|
Custom Special-Shaped Metal Cups |
Non-standard thickness & special-shaped full-size customization |
Custom-fit design, high fitting precision, stable performance under extreme conditions |
Deep oil & gas well drilling, special super-hard material processing, new material R&D |
|
Material |
Substrate Purity |
Total Impurity Content |
Core Standard |
|
Molybdenum / Tantalum |
≥99.95% |
≤0.05% |
High temperature resistance, low impurity, high vacuum compatibility |
|
Zirconium / Niobium |
≥99.9% |
≤0.1% |
Superior corrosion resistance, high pressure resistance, erosion resistance |
|
Titanium / Nickel |
≥99.5% |
≤0.5% |
Lightweight, biocompatible, stable conductivity |
01
Ultra-High Purity & Zero Contamination
All refractory metal substrates reach purity ≥99.9% with extremely low impurity content. No contamination occurs during processing, ensuring no impact on the accuracy and performance of high-end products, fully adapting to high-purity precision manufacturing processes.
02
Extreme & Controllable Dimensional Accuracy
Adopting precision stamping technology, the core dimensional tolerance is strictly controlled within ±0.001mm. Products feature high flatness, no deformation and no burrs with excellent assembly fitting performance, meeting the precision assembly requirements of micro-precision components.
03
Wide Adaptability for High-Temperature & High-Pressure Extreme Conditions
Refractory metal substrates possess excellent high-temperature resistance, withstanding temperatures up to 2600℃. Combined with outstanding high-pressure and anti-deformation capabilities, they operate stably in extreme scenarios such as deep well drilling, ultra-high temperature sintering and high-strength processing.
04
Superior Corrosion & Wear Resistance with Long Service Life
Maintaining stable performance under acid-base corrosion, high-temperature oxidation and high-speed scouring environments, the products feature anti-aging and wear-resistant properties, effectively reducing accessory replacement frequency and lowering production costs.
05
Stable Electrical & Thermal Conductivity
Metal substrates deliver excellent and uniform heat and electrical conduction without local overheating or unstable resistance, perfectly suitable for semiconductor and power conduction precision components.
06
Flexible Customization & Strong Adaptability
Supporting full-dimensional customization of thickness, size and shape. Standard specifications are sufficiently in stock, and special-shaped products support rapid die opening to accurately match non-standard equipment and special process requirements.
07
Excellent Batch Consistency
Equipped with automated precision production lines and standardized molds, products maintain highly unified size and performance, ideal for large-scale industrial supporting production.
Production Process
- Refractory metal raw material inspection → precision plate leveling → CNC cutting & blanking → integral precision stamping via standardized molds → high-precision dimension calibration → edge deburring & polishing → surface precision cleaning → triple inspection (material purity, dimensional tolerance, appearance defect) → sorting & classification → finished product packaging → delivery with complete test reports
01
Petroleum & Gas Drilling Industry
Custom high-purity metal cups matched for polycrystalline diamond compacts feature high pressure resistance, corrosion resistance and erosion resistance. They adapt to extreme deep and ultra-deep well drilling conditions, improving the stability and service life of drilling equipment.
02
Super-Hard Tool & Mold Industry
Supporting stamping parts for PCD inserts, PCBN inserts, diamond cutters, CBN tools and diamond wire drawing molds enhance tool clamping stability, machining accuracy and wear resistance.
03
Electronics & Semiconductor Industry
Precision metal discs are applied in chip packaging, electronic contacts, semiconductor equipment tooling and sensor induction components. High purity and conductivity ensure long-term stable operation of electronic devices.
04
Aerospace Industry
Suitable for aerospace precision instrument components, special sensor parts and aerospace tooling accessories. Lightweight, high-strength and high-temperature resistant properties meet extreme environmental requirements of aerospace equipment.
05
Medical Device Industry
Titanium and high-purity nickel stamped parts are used for minimally invasive device accessories and medical testing equipment components. Featuring good biocompatibility, high precision, non-magnetic and pollution-free performance, they fully comply with medical safety standards.
06
High-End Precision Manufacturing Industry
Applicable for precision mold accessories, special tooling fixtures, new energy equipment conductive parts and new material R&D consumables, providing core precision support for high-end precision equipment and special industrial processes.
Enterprise Advantages & Services
- Baoji Yunjie Metal has specialized in refractory metal precision manufacturing for over 30 years, owning mature precision stamping core technologies and multiple technical patents with ISO9001 quality system certification. We feature full material coverage, ultra-high precision, rapid die opening, stable delivery and superior quality. Standard products are in stock for immediate shipment, customized orders support quick response, small-batch trial production and large-scale stable mass production. All products undergo strict triple quality inspection on material purity, dimensional accuracy and appearance performance, maintaining a leading customer repurchase rate in the industry.
- Free Services: Material selection consultation, size specification optimization, special-shaped structure design, sample testing, exclusive batch customization solutions.
Send Inquiry
As a professional expert providing solutions for pure tantalum (R05200, complying with ASTM B708 American Standard) and various metal accessories and custom machined parts, Baoji Yunjie focuses on precision machining-to-drawing capability, fully meeting customers' machining needs from standard parts to complex custom parts! For a full range of metal materials and products such as titanium, tantalum, niobium and zirconium, welcome to provide drawings for consultation and customization. We will accurately reproduce designs and deliver products efficiently.