Niobium wire
Brand: RO4200-1, RO4210-2 Specification: Φ3.0~Φ100mm Implementation standard: ASTM B 392 -98 Ingredient description: Ingredient % Main ingredient of the brand Other impurities are maximum Nb Fe Si Ni W Mo Ti Ta O C H N Nb1 Remaining 0.004 0.004 0.002 0.005 0.005 0.002 0.05 0.012 0.0035 0.0012 0.003 Nb2 Remaining 0.01 0.01 0.005 0.02 0.01 0.004 0.07 0.015 0.0050 0.0015 0.008 If the user has special requirements, both parties will agree on the standard number. Tensile Strength, Min Max lb/in2 (MPa) Yield Strength (0.2% Residual deformation) minimum, pounds/in2 (MPa)
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Niobium Wire - Premium Grade RO4200-1 & RO4210-2 | ASTM B392 Certified
LINHUI TITANIUM supplies high-purity Niobium wire in grades RO4200-1 and RO4210-2, manufactured to ASTM B 392-98 standards. Our wire spans diameters from Φ3.0mm to Φ100mm with strict impurity control.
Grade Nb1 maintains maximum impurities of Fe ≤0.004%, Si ≤0.004%, O ≤0.012%, ensuring superior conductivity and ductility. Grade Nb2 offers commercial-grade purity (Fe ≤0.01%, O ≤0.015%) for cost-sensitive applications. Both grades feature controlled interstitial elements: Carbon ≤0.0035-0.0050%, Hydrogen ≤0.0012-0.0015%, Nitrogen ≤0.003-0.008%.
Every spool undergoes tensile and yield strength verification per ASTM standards. Custom specifications are available through mutual agreement on technical parameters.
Key Features & Benefits
Ultra-High Purity Composition
Our product features residual Nb content with tightly controlled trace elements. Low oxygen levels (12-15 ppm for Nb1) prevent embrittlement and preserve excellent formability.
Exceptional Mechanical Properties
Annealed temper provides optimal ductility for complex winding operations. Hard-drawn variants deliver enhanced tensile strength for structural applications requiring dimensional stability under load.
Cryogenic Temperature Stability
Maintains superconducting properties at liquid helium temperatures. Ideal for components operating in extreme thermal environments where conventional metals fail.
Specifications
| Ingredients % | ||||||||||||
| brand | main ingredient | Other impurities Maximum | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| Nb1 | surplus | 0.004 | 0.004 | 0.002 | 0.005 | 0.005 | 0.002 | 0.05 | 0.012 | 0.0035 | 0.0012 | 0.003 |
| Nb2 | surplus | 0.01 | 0.01 | 0.005 | 0.02 | 0.01 | 0.004 | 0.07 | 0.015 | 0.0050 | 0.0015 | 0.008 |
| If the user has special requirements, both parties will agree in detail | ||||||||||||
| Standard | Tensile Strength, Min Max lbs/in2 (MPa) | Yield Strength (0.2% Residual Deformation) Minimum, lbs/in2 (MPa) | Elongation, min, % 1 inch (25.4 mm) gauge length |
| Rod stock, 0.125 in (3.18 mm) to 2.5 in (63.5 mm) in diameter | |||
| RO4200-1 | 18000(125) | 12000(85) | 25 |
| RO4200-1 | 18000(125) | 12000(85) | 25 |
| Wire, 0.012 inch (0.3048 mm) to 0.124 inch (3.15 mm) diameter | |||
| Type 1 and Type 2 | 18000(125) | …… | 20 |
| Type 3 and Type 4 | 28000(195) | …… | 15 |
Manufacturing Process
Vacuum Circular segment Melting
Raw niobium experiences numerous electron bar softening cycles in ultra-high vacuum chambers. This expels unstable debasements and accomplishes base immaculateness levels surpassing 99.9%.
Hot Expulsion & Wire Drawing
Ingots are expelled at controlled temperatures, at that point dynamically drawn through carbide passes on. Middle of the road strengthening in hydrogen climate anticipates work solidifying and keeps up ductility.
Surface Treatment
Final items get corrosive pickling in HF/HNO₃ arrangement to kill oxide layers. This guarantees clean surfaces appropriate for vacuum frameworks and superconducting applications.
Quality Inspection
Dimensional Precision Testing
Laser micrometers confirm breadth consistency inside ±1% resistance over whole spool lengths. This avoids sticking in mechanized winding equipment.
Interstitial Gas Analysis
LECO combustion strategies measure oxygen, nitrogen, carbon, and hydrogen substance. We ensure oxygen levels underneath detail limits to avoid brittleness.
Surface Astuteness Checks
Eddy Current Testing identifies micro-cracks and surface abandons. Color penetrant review affirms zero subsurface discontinuities that might cause disappointment beneath tension.
Applications
Superconducting Magnet Components
Used in MRI frameworks and molecule quickening agents requiring steady execution at cryogenic temperatures underneath 9.2K.
Chemical Preparing Equipment
Corrosion-resistant warming components for forceful corrosive situations where stainless steel fails.
High-Temperature Vacuum Furnaces
Structural bolsters and warming components working over 1000°C in idle atmospheres.
Export Markets
Our items serve clients over North America, European Union, Japan, South Korea, and Southeast Asia. We keep up dynamic associations with aviation producers, investigate teach, and mechanical gear providers in over 40 nations.
Why Choose Us?
Factory-Direct Pricing
As direct manufacturers, we eliminate middlemen costs while maintaining full quality control throughout production.
Rapid Response Time
Technical quotations provided within 4 hours. Stock items ship within 3-7 days; custom orders deliver in 15-25 days.
Complete Traceability
Every spool includes heat number documentation with EN 10204 3.1 certificates. Third-party inspection available through SGS, TÜV, or BV.
Flexible Order Quantities
Trial orders accepted from 100 kg. Volume discounts available for ongoing supply agreements.
Packaging & Shipping
Niobium wire is wound on precision plastic or wooden spools to prevent surface damage. Each unit is vacuum-sealed with desiccants in moisture-proof bags.
Export packaging includes plywood cases meeting ISPM-15 fumigation standards. Shipping documentation comprises commercial invoices, packing lists, mill test certificates, and certificates of origin.
FAQ
Q: What distinguishes RO4200-1 from RO4210-2 grades?
A: RO4200-1 offers reactor-grade purity with tighter impurity limits, ideal for nuclear and high-end superconducting uses. RO4210-2 provides commercial-grade quality at lower cost for general industrial applications.
Q: Can your wire be welded?
A: Yes, using TIG or electron beam welding in vacuum or high-purity argon environments. Atmosphere welding causes immediate embrittlement from oxygen absorption.
Q: What is your minimum order quantity?
A: Stock items start from 100 kg. Custom specifications may require higher minimums depending on diameter and temper requirements.
Q: How should the wire be stored?
A: Keep sealed packaging intact until use. Store in dry conditions below 30°C humidity to prevent surface oxidation.
Q: Do you provide material certifications?
A: All shipments include mill test certificates per EN 10204 3.1 with full chemical and mechanical test data traceable to heat numbers.
Request a Quote
Ready to specify your Niobium wire requirements? Contact our engineering team at linhui@lhtitanium.com with your diameter, quantity, and temper preferences.
