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Niobium – Custom Machined Parts
Pure niobium has good relatively machinability among refractory metals. The melting point of this metal is 2477 ℃, and also, it is superior in corrosion resistance. Comparing to tantalum, material that have high corrosion resistance, the cost of niobium is not so expensive.
Niobium C103 is an alloy composed of 89% niobium, 10% hafnium, and 1% titanium.
It excels in situations requiring extremely high temperatures, combining high-temperature strength, corrosion resistance, and workability. This alloy is most commonly used in the aerospace industry.
Niobium - Properties
| Property (Unit) |
Purit (％) |
Bulk Density (g/㎤) |
Vickers Hardness (GPa) |
Young’s Modulus (GPa) |
Melting Point (℃) |
Recrystallization Temperature (℃) |
Coefficient of ThermalExpansion (10-⁶/℃) |
Thermal Conductivity (W/(m・K)) |
Volume Resistivity (Ω･㎝) |
|---|---|---|---|---|---|---|---|---|---|
| Material | |||||||||
| Nb | 99.95～ | 8.47 | 0.5～0.8 | 103 | 2,415 | 900 ～ 1,400 |
7.1 (RT) |
52 (20℃) |
14.1×10-⁶ (20℃) |
| Niobium C103 |
Nb 89% Hf 10% Ti 1% |
8.85 | - | - | 2,349 | 1,038 ～ 1,316 |
4.5 | 38.5 | 3×10-⁵ |
Niobium – Key Properties & Popular Applications
| Key Properties | Applications | |
|---|---|---|
| High Melting Point Superconductivity Corrosion Resistance Biocompatibility |
・It can be used in high temperature |
・Parts that used in high temperature ・Parts that need high precision ・Parts that need corrosion resistance ・Superconducting magnet ・Superconducting wire |
| ・Niobium C103 is primarily used in the aerospace industry. |
・Liquid rocket thruster nozzles ・Lightweight propulsion systems ・Thrust chambers and turbo pumps for rocket engines |
|
| Good Machinability |
・Its good machinability enables us to machine in complex shape. ・Easy to weld comparing to tungsten or molybdenum |
|
| Chemical Resistance | ||
Available Sizes and Machining Capability
| Availability | Sizes（mm） | Machining Capability | Sizes（mm） |
|---|---|---|---|
| Plate | 500×800×30 | Hole diameter | Φ0.03～ |
| Rod | Φ100×500 | Hole depth | ～300 |
| Groove width | 0.1 or more | Max. hole number | ～10,000 |
| Max. Groove (pocket) depth | ～100 | Thread size | M1.6～ |
Niobium Custom Machined Parts
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Top Seiko Co., Ltd.
〒526-0105
1197-4, Hosoe-cho, Nagahama City,
Shiga Pref.,526-0105 Japan
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