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- About Us
Niobium
Niobium (Nb) is a ductile, grey-white transition metal known for its excellent corrosion resistance, high melting point, and superconducting properties at cryogenic temperatures. It has a melting point of 2477 °C and exhibits a body-centered cubic (BCC) crystal structure. Niobium is valued for its strength, thermal stability, and biocompatibility. It forms a stable passive oxide layer, protecting it from oxidation and chemical attack.
Goodfellow’s range of Niobium products, including Niobium Rods, Niobium Sputtering Targets, Niobium Powder, and Niobium Spooled Wire, is essential for advanced research and industrial applications. Niobium is used frequently in laboratories developing new devices and technologies for aerospace, electronics, and materials science applications. Niobium-based materials are widely used in superconducting magnets, medical devices, and semiconductor fabrication. With high-purity options and precise customization, our Niobium product range enables innovation in areas such as particle accelerators, thin-film deposition, and advanced alloys. Researchers in both academic and industrial settings rely on our Niobium offerings to support their cutting-edge technologies.
Properties
Identifiers
Isotopes
Applications
Grades
Synonyms
General Properties
| Property | Value |
|---|---|
| Atomic Number | 41 |
| Density | 8.57 g/cm³ |
| Melting Point | 2477 °C |
| Boiling Point | 4744 °C |
| Thermal Conductivity | 54 W/m·K |
| Electrical Resistivity | 15.0 μΩ·cm |
| Crystal Structure | Body-Centered Cubic (BCC) |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 275–550 MPa |
| Yield Strength | 140–350 MPa |
| Young’s Modulus | 105 GPa |
| Hardness | Vickers 110–160 |
| Elongation at Break | 40–60% |
| Poisson’s Ratio | 0.4 |
Chemical Properties
| Property | Value |
|---|---|
| Corrosion Resistance | Excellent, especially in acids and alkaline environments |
| Reactivity | Forms stable passive oxide layer (Nb2O5) |
| Oxidation States | +3, +5 (commonly +5) |
| Surface Oxide | Niobium pentoxide (Nb2O5) |
| Identifier | Value |
|---|---|
| Symbol | Nb |
| Atomic Number | 41 |
| CAS Number | 7440-03-1 |
| UN Number | UN3089 (powder) |
| EINECS Number | 231-113-5 |
| Isotope | Type | Notes |
|---|---|---|
| Nb-93 | Stable | Only stable isotope, 100% natural abundance |
| Nb-94 | Radioactive | Used in medical and tracer applications |
| Nb-95 | Radioactive | Short half-life, used in research |
Scientific Applications
| Use Case | Description |
|---|---|
| Superconductivity | Used in superconducting magnets and quantum devices |
| Cryogenics | Material for ultra-low temperature applications |
| Vacuum Technology | Stable in high vacuum environments |
| Thin Film Coatings | Used in thin films for electronics and optics |
| Catalysis | Catalyst support in chemical reactions |
Industrial Applications
| Use Case | Description |
|---|---|
| Superalloys | Key component in aerospace turbine blades |
| Medical Implants | Used in biocompatible implants and prosthetics |
| Electronics | Capacitors and electronic components |
| Chemical Processing | Corrosion-resistant reactors and piping |
| Optics | Coatings for lenses and mirrors |
| Grade | Description |
|---|---|
| 99.85% | Commercial grade niobium, suitable for general industrial applications and alloying |
| 99.9% | High-purity grade for aerospace alloys, electronics, and corrosion-resistant applications |
| 99.999% | Ultra-high purity niobium used in superconducting magnets, quantum devices, and advanced scientific research |
| Synonym |
|---|
| Nb |
| Niobium metal |
| Elemental Niobium |
| Columbium |
| Columbium metal |
| Elemental Columbium |