Niobium is a silvery metal that commonly used in the medical, aerospace, and optics industries. At Fine Metals, niobium is available in 99.95% purity (excluding Tantalum).
View more details on niobium’s Safety Data Sheet.
General Properties
Symbol: Nb
Atomic Number: 41
Atomic Weight: 92.9064
Density: 8.57 gm/cc
Melting Point: 2468 oC
Boiling Point: 4742 oC
Thermal Conductivity: 0.537 W/cm/K @ 298.2 K
Electrical Resistivity: 12.5 microhm-cm @ 0 oC
Electronegativity: 1.6 Paulings
Specific Heat: 0.064 Cal/g/K @ 25 oC
Heat of Fusion: 6.5 Cal/gm mole
Inquire about custom sizing and/or metals or alloys not listed.
| Diameter | Length |
| .040″ | .040″ to 1″ maximum |
| .062″ | .062″ to 1″ maximum |
| .070″ | .070″ to 1″ maximum |
| .080″ | .080″ to 1″ maximum |
| .085″ | .085″ to 1″ maximum |
| .095″ | .095″ to 1″ maximum |
| .125″ | .125″ to 1″ maximum |
| .187″ | .187″ to 1″ maximum |
| .25″ | .25″ to 1″ maximum |
| .375″ | .375″ to 1″ maximum |
| .5″ | .5″ to 1″ maximum |
Our standard tolerances for pellets are +/- .005″ diameter and +/-.020″ length.
Inquire about custom sizing and metals or alloys not listed.
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