Hafnium Rod

Hafnium Rod is a solid, metallic form of hafnium, recognized for its excellent corrosion resistance, ductility, and high melting point. The rod geometry provides strength and consistency, making it suitable for machining, structural applications, and alloy development. Industries such as aerospace, energy, and advanced materials processing employ hafnium rods in areas requiring durability under thermal and chemical extremes. Specific technologies benefiting from hafnium rods include high-quantity manufacturing processes that yield rods with precise dimensional tolerances and excellent mechanical properties; advanced control rods developed from hafnium metal for reactor systems, which exploit its superior resistance to irradiation deformation and chemical attack; and engineered rod assemblies with hafnium cores or skins designed for improved performance in high-stress environments. In research, hafnium rods are indispensable for studying alloying effects, thin-film deposition precursors, and high-temperature performance in structural applications. By combining mechanical robustness with versatility, Hafnium Rod plays a pivotal role in both industrial innovation and scientific investigation of refractory metals.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Rod

Diameter	=<10mm	±10%
Diameter	>10mm	±5%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	72
Crystal structure	Hexagonal close packed
Electronic structure	Xe 4f¹⁴ 5d² 6s²
Valences shown	4
Atomic weight( amu )	178.49
Thermal neutron absorption cross-section( Barns )	103
Photo-electric work function( eV )	3.9
Natural isotope distribution( Mass No./% )	179/ 13.8
Natural isotope distribution( Mass No./% )	176/ 5.2
Natural isotope distribution( Mass No./% )	180/ 35.2
Natural isotope distribution( Mass No./% )	174/ 0.2
Natural isotope distribution( Mass No./% )	177/ 18.5
Natural isotope distribution( Mass No./% )	178/ 27.1
Atomic radius - Goldschmidt( nm )	0.159
Ionisation potential( No./eV )	3/ 23.3
Ionisation potential( No./eV )	1/ 7.0
Ionisation potential( No./eV )	2/ 14.9
Ionisation potential( No./eV )	4/ 33.3

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.26
Poisson's ratio	0.26
Bulk modulus( GPa )	109
Bulk modulus( GPa )	109
Tensile modulus( GPa )	141
Tensile modulus( GPa )	141
Hardness - Vickers( kgf mm⁻² )	150-180
Tensile strength( MPa )	445
Tensile strength( MPa )	745
Yield strength( MPa )	365
Yield strength( MPa )	240

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	32.2@20@20°C
Superconductivity critical temperature( K )	0.128
Temperature coefficient( K⁻¹ )	0.0044@0-100°C

Physical Properties

Element	Value
Boiling point( C )	4602
Density( gcm⁻³ )	13.1@20°C

Thermal Properties

Element	Value
Melting point( C )	2227
Latent heat of evaporation( J g⁻¹ )	3700
Latent heat of fusion( J g⁻¹ )	122
Specific heat( J K⁻¹ kg⁻¹ )	146@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	23@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	6@0-100°C