Machining Examples

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 - Properties

Property
(Unit)
Purity
(%)
Bulk Density
(g/㎤)
Vickers Hardness
(GPa)
Young’s Modulus
(GPa)
Melting Point
(℃)
recrystallizing
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 – 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
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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