Introduction to the state and various parameters of niobium tubes
Niobium tubes, seamless niobium tubes, welded niobium tubes
Grade: Nb1, Nb2
Purity: 99.95%, 99.99%
Density: 8.57g/cm³
Surface: alkali washing, polishing, black skin, grinding, lathing
Features: corrosion resistance, high temperature resistance, moderate hardness, ductility, wide working temperature range
Melting point: 2468℃
Specifications: Diameter: φ2.0-100mm
Thickness: 0.2-5.0mm
Length: 200mm-8000mm
Capillary size specifications: outer diameter Φ0.2~Φ8mm, wall thickness T0.015~0.5mm.
High precision: outer diameter Φ±0.003mm, wall thickness T±0.005mm, length L±0.05mm.
State: vacuum annealing, hardened, ground (turned) rod
Niobium tube application field
Used for heat exchange tubes in heat exchangers. Thermometer protection tubes in the petrochemical industry. Corrosion-resistant, high-temperature resistant industries such as aerospace and electronics industries.
Basic parameters of niobium tube
| Index | Nb2 | |
| Nb | Balance | |
| Fe | 0.01 | |
| Si | 0.01 | |
| Ni | 0.005 | |
| W | 0.02 | |
| Mo | 0.01 | |
| Ti | 0.004 | |
| Ta | 0.07 | |
| O | 0.015 | |
| C | 0.005 | |
| H | 0.0015 | |
| N | 0.005 |
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