Introduction
Niobium tubes are specialised pipes designed for conveying and transferring materials under extreme conditions, such as high temperature and high pressure. They are widely used in:
Nuclear industry
Aerospace
Shipbuilding
Chemical industry
Electronics
Thanks to niobium’s excellent corrosion resistance and high-temperature stability, niobium tubes possess:
Strong compressive strength
High tensile strength
Excellent fatigue resistance
Superior heat resistance
This makes them ideal for high-end industrial and scientific applications.
Niobium tubes undergo surface treatments to improve corrosion resistance, cleanliness, and flatness:
Mechanical polishing & electrolytic polishing: Enhance surface finish and flatness
Pickling & sandblasting: Remove oils, oxides, and other impurities
| Grade | Nb (Remainder) | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nb1 | Remainder | 0.004 | 0.004 | 0.002 | 0.005 | 0.005 | 0.002 | — | 0.05 | 0.015 | 0.004 | 0.0015 |
| Nb2 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.01 | 0.004 | — | 0.07 | 0.02 | 0.01 | 0.0015 |
Niobium tubes are widely used in:
High-temperature alloys
Niobium-based alloys
Steel industry
Electrical porcelain
Coinage and monetary applications
Medical devices
Aerospace components