Non-ferrous Metals
Deposition Materials
Rare Earth Elements
Scandium Sc
Yttrium Y
Terbium Tb
Dysprosium Dy
Holmium Ho
Erbium Er
Thulium Tm
Ytterbium Yb
Lutetium Lu
Gadolinium Gd
Europium Eu
Samarium Sm
Praseodymium Pr
Cerium Ce
Lanthanum La
Neodymium Nd
Rare Earth Sheets
Rare Earth Foil
Rare Earth Rod and Wire
Rare Earth Hexaboride XB6
Rare Earth Hydride
Semimetal Elements
Functional Materials
Niobium Rod / Niobium Bar / Niobium Ingot
Niobium has a high melting point, excellent resistance to corrosion, and good workability. Niobium rod is widely used for pharmacy, semiconductor, aviation and aerospace, nuclear, high-temperature assemblies, and other fields.
Specification for Niobium Rod / Niobium bar / Niobium Ingot
Material: R04200-Type 1 -Reactor grade unalloyed niobium
R04210-Type 2 -Commercial grade unalloyed niobium
R04251-Type 3—Reactor grade niobium alloy containing 1 % zirconium
R04261-Type 4—Commercial grade niobium alloy containing 1 % zirconium
R40220-Type 5 -RRR grade pure niobium
Diameter: 3~145mm diameter, 5mm x 5mm L to 120mm x 120mm x L
Standard: As per ASTM B392
Purity: >=99.9%
Chemical composition for Niobium Rod / Niobium bar / Niobium Ingot:
| Composition% | ||||||||||||
| Gr | Main Content | Impurities (≤ %) | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| Nb1 | Remainder | 0.004 | 0.004 | 0.002 | 0.005 | 0.005 | 0.002 | 0.05 | 0.012 | 0.0035 | 0.0012 | 0.003 |
| Nb2 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.01 | 0.004 | 0.07 | 0.015 | 0.0050 | 0.0015 | 0.008 |
Mechanical requirements (annealed condition) for Niobium Rod / Niobium bar / Niobium Ingot:
| Grade | Tensile strength,δb psi (MPa), ≥ | Yield strength,δ0.2, psi (MPa), ≥ | Elongation in 1"/2" gage length, %, ≥ |
| R04200-1 R04210-2 | 18000 (125) | 10500 (73) | 25 |
| Special requirements of niobium rod to be agreed on negotiations | |||
Pictures & Related Niobium Products
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