99.95% Pure Bright Surface Round Bar Shape Niobium Products
99.95% Pure Niobium Round Bar With Bright Surface on Sale
Niobium Bar / niobium price
Standard ASTM B392
grade Nb1 Nb2
Niobium is characterized by low vapor pressure, good cold processability, good resistance to corrosion, excellent chemical stability, high dielectric constant, in surface oxide film. So niobium is widely applied in many industries.
Such as electronics ,metallurgy, chemical processing , hard alloy cutters,
aerospace and aviation.
Dimensions of niobium bar / niobium price :
dia0.625*25.4mm*Lmm
| Grade | Suplying state | Diameter | Lengtha | Voluntary Standers |
|
Nb1 Nb2 Nb3 Nb4 |
Cold state(Y) Annealedb(M) |
3.0-6.5 >6.5-10.0 >10-18 |
>500 | ASTM B392-03 |
|
Thermal processing state(R) Annealedb(M) |
>18-25 >25-40 >40-50 >50-65 |
|||
|
FNb1 FNb2 |
Thermal processing state(R) Annealedb(M) |
3.5-5.0 >5.0-12 |
>500 >300
|
|
| NbHf10-1 |
Thermal processing state(R) Annealedb(M) |
20-80 | 500-2000 | |
|
Note a: Forged square rod side should not be less than 25mm, the length should not be more than 4000mm,NbHf10-1 Alloy is rod Note b: the length of Annealing bar being supplied is not greater than 2500mm. |
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Chemical composition: Nb O C N H an so on.
| Chemistry % | ||||||||||||
| Designation | Chief component | Impurities maxmium | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| Nb1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.004 | 0.002 | 0.07 | 0.015 | 0.004 | 0.0015 | 0.002 |
| Nb2 | Remainder | 0.02 | 0.02 | 0.005 | 0.02 | 0.02 | 0.005 | 0.15 | 0.03 | 0.01 | 0.0015 | 0.01 |
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