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Material Features:
Niobium is a kind of silver grey rear high-melting-point metal with relatively soft texture and ductility. At normal temperature,niobium cannot react with the air, and cannot be completely oxidized in oxygen in the red hot state. Niobium can be directly and
chemically combined with sulfur, nitrogen and carbon at high temperature. Niobium cannot react with inorganic acid or alkali, and is insoluble in aqua regia but is soluble in hydrofluoric acid. Niobium features extremely good superconductivity, high melting point, corrosion resistance, wear resistance, etc.
Application
1 Iron & steel, superconducting materials, aerospace, atomic energy and other fields.
2 Magnetron sputtering niobium targets in the electronic industry.
| Item | Factory price 99.95% pure forging niobium tube for industry |
| Standard | ASTM B394 |
| Density | 8.57g/cm3 |
| Melting point | 2468℃ |
| Purity | 99.95% min niobium |
| Size | OD≤65mm*WT ≤4.0mm*Length |
| Surface | polished, grinding |
| Technique | sintering, rolling, forging, spinning |
| Feature | high temperature resistance, corrosion resistance, long service life |
| Application | * Heat exchangers in heat exchangers. |
| * Thermometer protection tube for petrochemical industry. | |
| * Corrosion resistant, high temperature resistant industry | |
| * Aerospace, Electronic industry |
Grade
Condition
OD/mm
Wall thickness/mm
Length/mm
R04200
R04210
R04251
R04261
Annealing(M)
Cold rolled(Y)
Stress relief(m)
1~3
0.2~0.4
As customer's request
>3~5
0.2~0.6
>5~15
0.3~1.0
>15~25
0.6~2.0
>25~35
0.8~3.0
>35~40
1.0~3.5
>40~50
1.0~4.0
>50~65
1.2~4.0
Grade
Clearance element content(%)≤
O
N
H
C
R04200
0.025
0.01
0.0015
0.01
R04210
0.04
0.01
0.0015
0.015
R04251
0.025
0.01
0.0015
0.01
R04261
0.04
0.01
0.0015
0.015
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