Description
We provide niobium seamless tube, welded tube & pipe, and Nb capillary tube. Other niobium tubular products such as niobium rings are also available on request.
Niobium metal tube and pipe
Nb tubes
Material Grade: R04200, R04210
Purity: 99.9% Niobium
| Item | Specification |
|---|---|
| OD | Φ6.0-100mm |
| WT | 0.2-5.0mm |
| Length | 200mm-8000mm |
Niobium
Niobium Capillary
Purity: 99.9% Nb
| Item | Specification |
|---|---|
| Outer diameter: | Φ0.2～Φ6mm |
| Wall thickness: | T0.015～0.5mm |
| Tolerance: | Outer diameter: Φ±0.003mm Wall thickness T±0.005mm Length: L±0.05mm |
Chemical Composition for Niobium
| Composition% | ||||||||||||
| Material | Main Content | Impurities (no more than %) | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| R04200 | Bal | 0.004 | .004 | .002 | .005 | .005 | .002 | 0.05 | .012 | .0035 | .0012 | .003 |
| R04210 | Bal | 0.01 | .01 | .005 | .02 | .01 | .004 | 0.07 | .015 | .0050 | .0015 | .005 |
Application for Nb tube
Niobium is a rare, soft, malleable, ductile, gray-white metal. It has a body-centered cubic crystalline structure and in its physical and chemical properties, it resembles tantalum. It must be placed in a protective atmosphere when processed at even moderate temperatures because it tends to react with oxygen, carbon, halogens, nitrogen, and sulfur. The metal is inert to acids, even to aqua regia at room temperatures, but is attacked by hot, concentrated acids, and especially by alkalis and oxidizing agents.
Nb capillary tube and Nb-Zr capillary tubes are often used in high-pressure sodium lamp production.
Machined & customized parts are also available. Contact us at for any inquiries and questions on niobium and its alloys products.
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