Molybdenum Tube

Molybdenum Tube offers high melting point, excellent thermal conductivity, and resistance to corrosion in hollow cylindrical form designed for fluid or gas containment under extreme conditions. Its refractory properties make it valuable in aerospace, nuclear, and chemical processing industries, where durability and thermal stability are essential. Applications include furnace liners, protective sheaths for thermocouples, and containment systems in corrosive or vacuum environments. Specific uses extend to heat exchangers in high-temperature systems, cathode assemblies in electron tubes, and plasma-facing components in fusion devices. Research investigates molybdenum tubes for irradiation stability, thermal shock resistance, and their role as test vessels for advanced fuels. The tubular geometry provides efficient thermal flow, reduced weight compared to solid rods, and versatile integration into high-performance assemblies, reinforcing their role as indispensable components in advanced industrial and scientific systems.

Quick Links:

Tolerance

Properties

Reference & Citations

each

Tolerances

Tube

Outside Diameter	=<2mm	±0.05mm
Outside Diameter	2mm - 5mm	±0.1mm
Outside Diameter	>5mm	±5%
Wall Thickness		±10%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	42
Crystal structure	Body centred cubic
Electronic structure	Kr 4d⁵ 5s¹
Valences shown	2, 3, 4, 5, 6
Atomic weight( amu )	95.94
Thermal neutron absorption cross-section( Barns )	2.65
Photo-electric work function( eV )	4.2
Natural isotope distribution( Mass No./% )	95/ 15.9
Natural isotope distribution( Mass No./% )	96/ 16.7
Natural isotope distribution( Mass No./% )	98/ 24.1
Natural isotope distribution( Mass No./% )	97/ 9.6
Natural isotope distribution( Mass No./% )	92/ 14.8
Natural isotope distribution( Mass No./% )	94/ 9.3
Natural isotope distribution( Mass No./% )	100/ 9.6
Atomic radius - Goldschmidt( nm )	0.14
Ionisation potential( No./eV )	2/ 16.15
Ionisation potential( No./eV )	5/ 61.2
Ionisation potential( No./eV )	68
Ionisation potential( No./eV )	1/ 7.10
Ionisation potential( No./eV )	3/ 27.2
Ionisation potential( No./eV )	4/ 46.4

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.293
Poisson's ratio	0.293
Bulk modulus( GPa )	261.2
Bulk modulus( GPa )	261.2
Tensile modulus( GPa )	324.8
Tensile modulus( GPa )	324.8
Hardness - Vickers( kgf mm⁻² )	250
Hardness - Vickers( kgf mm⁻² )	200
Tensile strength( MPa )	485-550
Tensile strength( MPa )	620-690
Yield strength( MPa )	550
Yield strength( MPa )	415-450

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	5.7@20@20°C
Superconductivity critical temperature( K )	0.915
Temperature coefficient( K⁻¹ )	0.00435@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	1.45

Physical Properties

Element	Value
Boiling point( C )	4612
Density( gcm⁻³ )	10.22@20°C

Thermal Properties

Element	Value
Melting point( C )	2617
Latent heat of evaporation( J g⁻¹ )	6153
Latent heat of fusion( J g⁻¹ )	290
Specific heat( J K⁻¹ kg⁻¹ )	251@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	138@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	5.1@0-100°C