| Specification | |
| Item | ASTM B393 9995 pure polished niobium target for industry |
| Standard | ASTM B393 |
| Density | 8.57g/cm3 |
| Purity | ≥99.95% |
| Size | according to customer's drawings |
| Inspection | Chemical composition testing, Mechanical testing, Ultrasonic inspection, Appearance size detection |
| Grade | R04200, R04210, R04251, R04261 |
| Surface | polishing, grinding |
| Technique | sintered, rolled, forged |
| Feature | High temperature resistance, corrosion resistance |
| Application | Superconducting industry, Aerospace aviation, Chmeical Industry, Mechanical |
|
Chemical Composition |
|||
| Grade |
R04200 |
R04210 |
|
| Main element |
Nb |
Bal |
Bal |
| Impurity elements |
Fe |
0.004 |
0.01 |
|
Si |
0.004 |
0.01 |
|
|
Ni |
0.002 |
0.005 |
|
|
W |
0.005 |
0.02 |
|
|
Mo |
0.005 |
0.01 |
|
|
Ti |
0.002 |
0.004 |
|
|
Ta |
0.005 |
0.07 |
|
|
O |
0.012 |
0.015 |
|
|
C |
0.035 |
0.005 |
|
|
H |
0.012 |
0.0015 |
|
|
N |
0.003 |
0.008 |
|
|
Mechanical Property |
|||
|
Grade |
Tensile Strength ≥ Mpa |
Yield Strength ≥ Mpa(0.2% residual deformation) |
Extend Rate % (25.4mm measurement) |
|
R04200 R04210 |
125 |
85 |
25 |
|
Content, Max, Weight % |
||||
|
Element |
Grand: R04200 |
Grand:R04210 |
Grand:R04251 |
Grand:R04261 |
|
Unalloyed Niobium |
Unalloyed Niobium |
(Reactor grade niobium-1% Zirconium) |
(Commercial grade niobium-1% Zirconium) |
|
|
C |
0.01 |
0.01 |
0.01 |
0.01 |
|
O |
0.015 |
0.025 |
0.015 |
0.025 |
|
N |
0.01 |
0.01 |
0.01 |
0.01 |
|
H |
0.0015 |
0.0015 |
0.0015 |
0.0015 |
|
Fe |
0.005 |
0.01 |
0.005 |
0.01 |
|
Mo |
0.01 |
0.02 |
0.01 |
0.05 |
|
Ta |
0.1 |
0.3 |
0.1 |
0.5 |
|
Ni |
0.005 |
0.005 |
0.005 |
0.005 |
|
Si |
0.005 |
0.005 |
0.005 |
0.005 |
|
Ti |
0.02 |
0.03 |
0.02 |
0.03 |
|
W |
0.03 |
0.05 |
0.03 |
0.05 |
|
Zr |
0.02 |
0.02 |
0.8~1.2 |
0.8~1.2 |
|
Nb |
Remainder |
Remainder |
Remainder |
Remainder |