China Suppliers and Factory of Pure Niobium Rods/Wires for High-Purity Industrial & Laboratory Applications

Discover our premium pure niobium rods and wires of R04200 grade, expertly crafted from high-purity niobium (Nb content ≥ 99.95%) in compliance with ASTM R04200 standards. Produced by a reliable China factory, our rods and wires undergo multiple precise processes, including vacuum melting, forging, hot rolling, drawing, and annealing. Our products meet rigorous quality standards, with rods classified as having a diameter ≥1.0mm and wires at ≤1.0mm.

These high-purity niobium products are ideal for various applications, including high-temperature electrodes, aerospace precision components, chemical corrosion-resistant connectors, laboratory probes, superconducting material conductors, and medical device wires. Manufactured by top suppliers in China, our niobium rods and wires boast remarkable high-temperature stability, enduring long-term operations below 1200℃ and withstanding short-term exposure to 1600℃. They offer excellent corrosion resistance, tolerating most acids, alkalis, molten salts, and high-temperature gases (excluding hydrofluoric acid), along with ultra-pure impurity-free properties, exceptional ductility, and superior electrical conductivity.

Thanks to these outstanding characteristics, our niobium products are essential materials in industries that demand high purity, structural integrity, electrical performance, and environmental resilience, making them the perfect choice for high-precision, fine-specifications, and extreme-condition functional applications.

Product specification

Product Details

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Ultra-High Purity

Nb content ≥ 99.95%, meeting the strictest ASTM R04200 grade standards.

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High-Temperature Stability

Excellent performance under extreme temperatures with superior corrosion resistance.

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Custom Processing

Supports cutting, bending, welding, wire drawing, and thread processing to spec.

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Fine Surface Finish

Available in pickled, bright annealed, cold drawn, and polished surface conditions.

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Excellent Conductivity

Good electrical and thermal conductivity with outstanding ductility.

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Low MOQ

Minimum order of just 1kg; preferential pricing available for bulk purchases.

📋 Product Specifications

Product Name	Pure Niobium Rods, Pure Niobium Wires
Brand Name	Yunjie
Model	R04200 (ASTM Standard)
Material	High-Purity Niobium (Commercially pure niobium, complying with ASTM R04200 grade)
Processes	Forging, Hot Rolling, Cold Rolling/Drawing, Annealing, Surface Treatment, Cutting
Minimum Niobium Content	Meets high-purity standards (Nb content ≥ 99.95%)
Density	8.57 g/cm³
Advantages	Excellent high-temperature stability, superior corrosion resistance, good electrical and thermal conductivity, ultra-pure material, excellent ductility, high dimensional accuracy, fine surface finish
Surface Conditions	Pickled Surface, Bright Annealed Surface, Cold Rolled/Drawn Surface, Polished Surface
Delivery Conditions	Soft State (M), Hard State (Y)
Processing Services	Customized dimensions (diameter, length), cutting, bending, welding, wire drawing refinement, thread processing
Minimum Order Quantity	1kg (Calculated based on actual orders; preferential terms available for bulk purchases)

❓ Frequently Asked Questions

💬 What ASTM standard do your pure niobium rods and wires comply with?

Our pure niobium rods and wires comply with the ASTM R04200 standard, which specifies requirements for commercially pure niobium with a minimum niobium content of ≥ 99.95%. This ensures consistent quality and performance for demanding industrial and scientific applications.

💬 What surface finish options are available for niobium rods and wires?

We offer four surface condition options: Pickled Surface, Bright Annealed Surface, Cold Rolled/Drawn Surface, and Polished Surface. Each surface finish is suited to different application requirements, from general industrial use to precision and optical-grade applications.

💬 Can you provide custom dimensions and processing services?

Yes. We offer fully customized processing services including custom diameter and length, cutting, bending, welding, wire drawing refinement, and thread processing. Please provide your technical drawings or specifications, and our team will produce parts to your exact requirements.

💬 What is the minimum order quantity (MOQ) for niobium rods and wires?

The minimum order quantity is 1kg, calculated based on actual order weight. For bulk purchases, preferential pricing and terms are available. Please contact our sales team to discuss volume discounts and delivery schedules.

💬 What delivery conditions (temper states) are available?

Niobium rods and wires are available in two delivery conditions: Soft State (M) — annealed for maximum ductility and formability, and Hard State (Y) — work-hardened for increased strength and hardness. The appropriate state depends on your downstream processing and application requirements.

💬 What are the main advantages of using high-purity niobium rods and wires?

High-purity niobium (Nb ≥ 99.95%) offers a unique combination of properties: excellent high-temperature stability, superior corrosion resistance in aggressive environments, good electrical and thermal conductivity, outstanding ductility for complex forming operations, high dimensional accuracy, and a fine surface finish — making it ideal for superconducting, aerospace, chemical, and medical applications.

Classification

$Precision Refractory Metal Stamped Parts (Metal Discs & Metal Cups) (1)$

Classification by Product Form

Precision Metal Discs

Manufactured by high-precision stamping technology with ultra-thin thickness, accurate dimensions and burr-free smooth surface. Covering complete specifications, they are widely applied in micro-precision devices, electronic contacts, semiconductor tooling and sensor core components. Full-size non-standard customization is supported with excellent batch consistency for mass production.

Precision Metal Cups

Available in three basic types: flat-bottomed, spherical and conical, with standard thicknesses in stock. Integral stamping ensures stable structure, high pressure resistance and anti-deformation performance. Specially matched for polycrystalline diamond compacts, super-hard cutting tools and diamond wire drawing molds, adapting to extreme working conditions of deep well drilling and precision mold processing.
Classification by Material Performance

Molybdenum / Tantalum Stamped Parts: Ultra-high melting point, stable high-temperature strength, suitable for ultra-high temperature heat treatment, crystal processing and aerospace high-end scenarios.

Zirconium / Niobium Stamped Parts: Excellent corrosion and erosion resistance, ideal for extreme corrosive working conditions in petroleum drilling and chemical industries.

Titanium / Nickel Stamped Parts: Lightweight, good biocompatibility and conductivity, perfect for medical devices and semiconductor precision components.
Classification by Machining Precision

Standard Precision Grade: Standard specifications in stock with stable tolerance and cost performance, suitable for general industrial mass production.

Ultra-High Precision Custom Grade: Custom die opening on demand, tolerance strictly controlled within ±0.001mm, accurate restoration of special-shaped structures, applicable for scientific research, high-end precision manufacturing and special equipment scenarios.

Specification Selection Guide & Chemical Composition Standards

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

Core Product Characteristics

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.

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.

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.

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.

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.

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.

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

$Precision Refractory Metal Stamped Parts (Metal Discs & Metal Cups) (1)$

Application Fields

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.

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.

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.

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.

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.

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.

$Precision Refractory Metal Stamped Parts (Metal Discs & Metal Cups) (3)$

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.