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| Product Name | ASTM B394 Niobium Cup R04200 R04210 Custom Made Seamless Niobium Crucible Deep Drawn Spun Cylindrical Container for Laboratory and Industrial Use |
| Grade | Nb1 R04200, Nb2 R04210, NbZr1 Alloy |
| Chemical Composition% | Nb1: Nb≥ 99.95%, Fe≤0.004%, Si≤0.002%, Ni≤0.005%, W≤0.005%, Mo≤0.002%, Ti≤0.05%, Ta≤0.012%, C≤0.0035%, H≤0.0012%, N≤0.003%, O≤0.003%. Nb2: Nb≥98.5%-99.95%, Fe≤0.01%, Si≤0.005%, Ni≤0.02%, W≤0.001%, Mo≤0.004%, Ti≤0.07%, Ta≤0.015%, C≤0.005%, H≤0.0015%, N≤0.008%, O≤0.008%. |
| Density/Melting Point | Density: 8.57 g/cm³, Melting Point: 2468°C, Max continuous service temperature (vacuum): 1800°C |
| Shape | Square/Round/Cylindrical/Custom |
| Available Size | D: 6-500mm, H: 8-1000mm, WT: 0.1-3mm Customized |
| Mechanical Properties | Ultimate Tensile Strength ≥125 MPa Yield Strength, 0.2% Offset ≥73 MPa Elongation ≥25% |
| Surface Treatment | Bright Finish, Mill Finish, Mechanical Polished, Mirror Polished, Pickled Surface, Acid Cleaned, Ultrasonic Cleaned, Vacuum Cleaned, Degreased Surface, Custom Surface Roughness |
| Production Process | Raw Material → Vacuum/EB Melting → Niobium Sheet or Tube Preparation → Cutting → Deep Drawing / Spinning → Intermediate Annealing → Final Forming → Trimming → CNC Machining if Required → Surface Treatment → Cleaning → Dimensional Inspection → Packaging |
| Custom Service | Dimension / Purity / Shape / Capacity OEM/ODM |
| Standard | ASTM B394-18 Niobium & Niobium Alloy Seamless/Welded Tubes ASTM B393-18 Niobium Sheet, Strip & Plate ASTM B391-18 Niobium & Niobium Alloy Ingots ASTM B392-18 Niobium Bar, Rod & Wire ASTM E8/E8M Tensile Testing UNS R04200 Reactor Grade Unalloyed Niobium UNS R04210 Commercial Grade Unalloyed Niobium UNS R04251 Reactor Grade Nb-1Zr UNS R04261 Commercial Grade Nb-1Zr |
| Advantages | 1. High Purity: 99.9%, 99.95% and 99.99% niobium options. 2. Custom Manufacturing: Custom OD, ID, height, wall thickness and bottom geometry. 3. Excellent Formability: Suitable for deep drawing and spinning. 4. High Temperature Capability: Melting point approximately 2477°C. 5. Excellent Corrosion Resistance: Suitable for demanding chemical and thermal environments. 6. Vacuum Compatible: Suitable for vacuum thermal processing and specialized laboratory equipment. 7. Seamless Construction Available: Seamless construction can minimize weld-related concerns for suitable designs. 8. Precision Manufacturing: CNC machining and secondary processing available. 9. Multiple Surface Finishes: Bright, polished, pickled and cleaned finishes available. 10. Small-Batch Customization: Suitable for prototypes, R&D and industrial production. |
| Applications | High-Temperature Applications: Vacuum Furnaces / High-Temperature Processing / Thermal Processing / Heat Treatment Equipment / Laboratory Furnaces Chemical Applications: Corrosion-Resistant Equipment / Chemical Processing / High-Purity Chemical Systems Research & Laboratory: Laboratory Crucibles / Material Research / Metallurgical Research / High-Temperature Experiments / Vacuum Research Advanced Manufacturing: Semiconductor Equipment / Vacuum Equipment / Advanced Materials / Thin Film Processing / Coating Equipment / Sputtering Systems Other Applications: Aerospace / Electronics / Superconducting Research / Specialty Metallurgy |
Our high purity niobium cups are precision-manufactured cylindrical niobium components designed for demanding high-temperature, vacuum, laboratory, chemical processing and advanced materials applications. Manufactured from high-purity unalloyed niobium, these cups are available in 99.9%, 99.95% and 99.99% purity grades, with R04200 and R04210 material options available according to customer requirements.
The niobium cups can be manufactured by deep drawing, metal spinning, tube forming, precision forming and CNC machining. Seamless or custom-designed constructions are available depending on the geometry, wall thickness and application requirements.
Every batch can be inspected for material composition, dimensions, wall thickness, surface condition, burrs, cleanliness and other customer-specified requirements. PMI/chemical analysis, dimensional inspection reports, MTC and COC are available upon request.
Each component is carefully cleaned and individually protected using PE or vacuum packaging with soft protective materials. Products are packed in export cartons or wooden cases according to quantity, size and customer requirements to prevent scratches, contamination, moisture and deformation during transportation.
OEM and ODM orders are welcome. Please send your drawing, dimensions, material grade, purity, quantity, tolerance and surface finish requirements for a customized quotation.
