Chromium Rod

Chromium Rod is a solid metallic form valued for its extreme hardness, high wear resistance, and strong corrosion resistance in harsh operating conditions. Its excellent chemical stability, low friction coefficient, and high melting point make it ideal for use in demanding mechanical and thermal environments. The rod form provides structural integrity and is easily machined or integrated into complex assemblies. Key industries utilizing chromium rods include aerospace, automotive, tooling, and energy, where they serve in applications such as high-performance shafts, precision mechanical components, and wear-resistant inserts. Technologies that particularly benefit include electroplated tooling for extended service life, turbine and engine parts exposed to high temperatures, and precision motion components in corrosive environments. Research is advancing in the development of chromium-based alloys and surface treatments to enhance the already robust properties of chromium rods, cementing their role as a foundational material in advanced engineering and industrial innovation.

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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	24
Crystal structure	Body centred cubic
Electronic structure	Ar 3d⁵ 4s¹
Valences shown	2, 3, 6
Atomic weight( amu )	51.996
Thermal neutron absorption cross-section( Barns )	3.1
Photo-electric work function( eV )	4.4
Natural isotope distribution( Mass No./% )	50/ 4.35
Natural isotope distribution( Mass No./% )	52/ 83.79
Natural isotope distribution( Mass No./% )	54/ 2.36
Natural isotope distribution( Mass No./% )	53/ 9.5
Atomic radius - Goldschmidt( nm )	0.128
Ionisation potential( No./eV )	4/ 49.1
Ionisation potential( No./eV )	3/ 31.0
Ionisation potential( No./eV )	1/ 6.77
Ionisation potential( No./eV )	6/ 90.6
Ionisation potential( No./eV )	2/ 16.5
Ionisation potential( No./eV )	5/ 69.3

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.21
Poisson's ratio	0.21
Bulk modulus( GPa )	160.2
Bulk modulus( GPa )	160.2
Tensile modulus( GPa )	279
Tensile modulus( GPa )	279
Hardness - Vickers( kgf mm⁻² )	130
Hardness - Vickers( kgf mm⁻² )	220
Tensile strength( MPa )	689
Tensile strength( MPa )	103

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	13.2@20@20°C
Temperature coefficient( K⁻¹ )	0.00214@0-100°C

Physical Properties

Element	Value
Boiling point( C )	2672
Density( gcm⁻³ )	7.1@20°C

Thermal Properties

Element	Value
Melting point( C )	1857
Latent heat of evaporation( J g⁻¹ )	6580
Latent heat of fusion( J g⁻¹ )	260
Specific heat( J K⁻¹ kg⁻¹ )	518@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	94@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	6.5@0-100°C