Your Professional Niobium Crucible Supplier
Established in July 2023, the company is located in Baoji, Shaanxi Province, a city that accounts for 60% of the world’s titanium production. It is a comprehensive enterprise integrating the production, R&D, and sales of non-ferrous metals. The company's business primarily covers the precision forging of titanium and titanium alloys; the development and production of various titanium products and parts; the production, design, and manufacturing of titanium and nickel chemical equipment; and the distribution of non-ferrous metals such as titanium, nickel, tungsten, molybdenum, tantalum, niobium, and zirconium. The company is particularly well-positioned in the processing of molybdenum, tantalum, and niobium spinning crucibles.
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![Welded Niobium Crucible]()
Welded Niobium CrucibleThe welded niobium crucible is a high-temperature vessel formed by a precision welding process with high-purity metal niobium (Nb1/Nb2, purity 99.95%-99.99%) as raw material. It is specially designed -
![NbC103 Niobium Crucible]()
NbC103 Niobium CrucibleNbC103 niobium crucible is carefully made of high-purity niobium material combined with advanced technology. Pure niobium itself has the characteristics of high melting point, high temperature -
![Nb1 Niobium Crucible]()
Nb1 Niobium CrucibleNb1 niobium crucible is a precision container made of high-purity niobium material. Niobium metal itself has a variety of excellent properties, and after being processed by advanced technology, it is
Why Choose Us
Sales Market
The company obtained ISO 9001:2015 certification in July 2025. We strictly adhere to the ISO 9001 quality management system in daily production and processing, implementing a “zero-defect control standard” throughout the entire smelting, forging, and surface treatment process.
Major Sales Markets
We are based in Shaanxi, China, and since 2023 have been selling to Southeast Asia (30.00%), Northern Europe (30.00%), South America (20.00%), Eastern Europe (10.00%), and Oceania (10.00%).
Certification
In August 2025, the company obtained SGS supplier certification, fully preparing for its subsequent expansion into the European market.
OEM Service
The core of Original Equipment Manufacturer (OEM) services is contract manufacturing tailored to customer requirements, which encompasses end-to-end support ranging from product design to finished product delivery.
Products Specification
|
Purity |
Nb1≥99.95% |
|
ID |
30mm-600mm, Customizable |
|
Height |
60mm-900mm, Customizable |
|
Wall Thickness |
2.5mm-12mm, Customizable |
|
Thermal Conductivity |
55W/(m・K) |
|
Melting point |
2470℃ |
|
Density |
8.6g/cm³ |
|
Thermal Expansivity |
7.0×10⁻⁶/℃ |
|
HV |
180 - 220 |
Chemical Composition
|
Elements\Grade |
R04200 |
R04210 |
|
Nb |
Bal. |
Bal. |
|
O |
≤0.0250% |
≤0.0400% |
|
C |
≤0.0100% |
≤0.0150% |
|
N |
≤0.0100% |
≤0.0100% |
|
H |
≤0.0015% |
≤0.0015% |
Advantages of niobium crucibles
High melting point
Niobium crucibles can withstand extremely high temperatures without deforming.
Corrosion resistance:
Niobium is highly resistant to corrosion, particularly in acidic and oxidizing environments.
Thermal conductivity
Niobium has excellent thermal conductivity, making it ideal for use in processes that require efficient heat transfer.
Durability
Niobium is durable and can handle repeated high-temperature cycling without degrading.
Mechanical Properties Of Annealed Condition
|
Grade |
Tensile strength |
Yield strength |
Elongation in 1″/2″ gage length, %, ≥ |
|
|
>=0.010 |
<0.010 |
|||
|
R04200, R04210 |
18000 (125) |
10500 (73) |
20 |
15 |
|
R04251, R04261 |
28000 (195) |
18000 (125) |
20 |
15 |
|
R04220 (RRR Grade) |
14000 (95) |
7200 (50) |
30 |
30 |
Niobium Crucible Processing Method
Niobium Crucible can be classified into four types according to the processing methods, including stamping, machining, sintering, and welding. The detailed processes are as follows:
Material Selection and Purification
High-purity niobium (99.9%+) is selected, and impurities are removed using methods like vacuum arc remelting (VAR).
Melting and Casting
Niobium is melted in a vacuum arc furnace and then cast into ingots or billets for further processing.
Hot Working
The niobium is forged or extruded into semi-finished shapes like discs or rods to improve grain structure and shape.
Shaping and Forming
Niobium is stamped, pressed, or deep-drawn into crucible shapes, followed by machining for precise dimensions.
Heat Treatment
Annealing or vacuum heat treatment is performed to relieve stresses and enhance strength and corrosion resistance.
Surface Finishing
Grinding, polishing, and coating (if needed) are done to achieve a smooth surface and improve durability.
Certificates
FAQ
As one of the most professional niobium crucible manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to wholesale cheap niobium crucible in stock here and get quotation from our factory. Customized orders are welcome.
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