Niobium Nb Crucible (Nb Seamless and Welding Crucible)
Princeton Powder specializes in manufacturing high-purity niobium thin-walled crucibles. We produce cylindrical, rectangular, and round-bottom crucibles using both forging and welding techniques. Niobium crucibles, with their excellent durability, thermal stability, and corrosion resistance, are ideal for use in rigorous high-temperature environments. Capacities range from 2 ml to 1,000 ml, with custom options available to suit individual needs.
We provide a wide range of refractory metal crucibles including Molybdenum Crucible, Zirconium Crucible, Tantalum Crucible, and Tungsten Crucible, which is widely used under high-temperature conditions. Our tantalum crucibles are widely used in universities and laboratories across the United States, Canada, and Europe.
Material | Niobium Crucible, Nb |
CAS Number | 7440-03-1 |
Purity | 99.5% min |
Standard | UNS R04210 |
| Density | 99.9% or 99.95% |
Melting Point | 2477 ℃ |
Shape | Straight Wall, Cylindrical, Rectangular or Square, Custom-shaped |
Dimensions | 10-500mm OD x 10-600mm L |
Capacity | 2 ml-1,000 ml |
| Manufacturing Process | Seamless, welding |
Description of Niobium Crucible
Niobium (Nb) crucibles are crafted from niobium, a refractory and durable transition metal with a high melting point of 2,477°C and outstanding resistance to corrosion. These properties make niobium crucibles highly suitable for applications involving intense heat, particularly in research labs and industrial settings that require materials capable of withstanding extreme temperatures and corrosive environments. Niobium crucibles can be manufactured using forging or welding techniques, ensuring flexibility in production. Seamless niobium crucibles, recognized for their excellent mechanical strength, heat resistance, and corrosion durability, are ideal for challenging high-temperature processes.
Chemical Composition of Niobium Crucible
| Element | R04200 (Reactor Grade) | R04210 (Commercial Grade) |
|---|---|---|
| O | 0.015% max | 0.025% max |
| C | 0.01% max | 0.01% max |
| N | 0.01% max | 0.01% max |
| H | 0.0015% max | 0.0015% max |
| Zr | 0.02% max | 0.02% max |
| Fe | 0.005% max | 0.01% max |
| Si | 0.005% max | 0.005% max |
| W | 0.03% max | 0.005% max |
| Ni | 0.005% max | 0.0050% max |
| Mo | 0.01% max | 0.02% max |
| Hf | 0.02% max | 0.02% max |
| Ti | 0.02% max | 0.02% max |
| Ta | 0.1% max | 0.3% max |
| Nb | Remainder | Remainder |
Standard Dimensions of Niobium Crucible
Can be customized per drawing
Item Number | Capacity | OD | H | WT |
Ta-5ml | 5 | 25 | 17 | 2 |
Ta-10ml | 10 | 30 | 21 | 2 |
Ta-15ml | 15 | 34 | 23 | 2 |
Ta-20ml | 20 | 37 | 26 | 2 |
Ta-25ml | 25 | 39 | 27 | 2 |
Ta-30ml | 30 | 42 | 29 | 2 |
Ta-35ml | 35 | 44 | 30 | 2 |
Ta-40ml | 40 | 45 | 32 | 2 |
Ta-45ml | 45 | 47 | 33 | 2 |
Ta-50ml | 50 | 49 | 34 | 2 |
Ta-55ml | 55 | 50 | 35 | 2 |
Ta-75ml | 75 | 55 | 39 | 2 |
Ta-80ml | 80 | 58 | 40 | 3 |
Ta-100ml | 100 | 62 | 43 | 3 |
Ta-250ml | 250 | 82 | 58 | 3 |
Ta-500ml | 500 | 102 | 72 | 3 |
Ta-1000ml | 1000 | 127 | 90 | 3 |
Niobium Crucible Features and Application
Elevated Melting Point: Suitable for the melting of metals such as titanium and zirconium at high temperatures.
Superior Corrosion Resistance: Protects against deterioration caused by acids, alkalis, and various aggressive substances.
Biocompatible Properties: Applicable in environments that require materials to be biocompatible and resistant to corrosion.
Thermal Resilience: CVD and PVD processes that demand high purity and thermal stability
Robust Mechanical Integrity: Ideal for use in aerospace applications.
Essential factors for selecting the right Niobium crucible
Purity Level
Verify the purity level of the Niobium material used in the crucible, particularly for specialized applications like electronics.
Size and Capacity
Confirm the size and capacity requirements of Niobium Crucible
Material Compatibility
Verify that the material does not chemically interact with niobium and ensure that niobium possesses the necessary physical properties for the intended working conditions, such as its melting point and its reactivity with the surrounding environment.
Customized Requirements
Provide detailed customization requirements, including drawings, working conditions, and product application information.