Nb1 pure niobium sheet,niobium plate, niobium
Specification
Standard |
ASTM B393 |
Purity |
99.95%Min |
Process |
Rolling |
Flatness | Max. 1.5 % determined in accordance with ASTM B393-89 |
Surface |
The sheets are free from impurities, splits, fractures and indentations,having an impact on a common processing or application of the product. |
Surfacenroughness |
Cold rolled. bright: Ra ≤ 1.20 μm |
Chemical composition:
Industry W1 W2 99.95% pure tungsten sheet price
| Chief componment | Impurities maximum | |||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| Nb1 | Remainder | 0.004 | 0.003 | 0.002 | 0.0004 | 0.004 | 0.002 | 0.07 | 0.01 | 0.004 | 0.0012 | 0.002 |
| Nb2 | Remainder | 0.005 | 0.005 | 0.005 | 0.01 | 0.01 | 0.004 | 0.1 | 0.015 | 0.01 | 0.0015 | 0.01 |
Mechanical requirements (annealed condition)
Industry W1 W2 99.95% pure tungsten sheet price
| Grade | Tensile strength(MPa) , ≥ | Yield strength(Mpa) δ0.2, psi (MPa),≥ | Elongation in 1"/2" gage length,%, ≥ | ||
|
RO4200-1 |
18000 (125) |
10500 (73) |
25 | ||
Application
1.mainly used in chemical engineering, etc.
2.it's widely used for steel, ceramics, electronics, nuclear energy industries and superconductor technology
3.used for semiconductor materials, vacuum coating.
Advantage
1.High melting point,Melting point: 2468 °C,Boiling point: 4742°C
2.Low vapor pressure
3.Good cold processability
4.Excellent chemical stability
5.Good resistance to corrosion
6.High dielectric constant,in surface o
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