Chromium Disk

Chromium Disk is a precision-machined metallic form valued for its high hardness, excellent wear resistance, and superior corrosion resistance in harsh industrial environments. With a low friction coefficient and good thermal stability, chromium disks are ideal for applications that demand both mechanical performance and chemical durability. The disk form provides an optimal geometry for integration into surface contact systems, sputtering targets, and high-precision assemblies. Industries such as aerospace, electronics, energy, and manufacturing employ chromium disks for tooling inserts, decorative yet functional surface finishes, and components exposed to extreme temperatures and corrosive agents. Specific technologies benefiting from chromium disks include magnetron sputtering for thin-film deposition, electroplated wear-resistant coatings, and precision bearing surfaces. Ongoing research explores microstructural control, alloying strategies, and advanced deposition techniques to further enhance the performance and service life of chromium disk components. Its combination of form precision and intrinsic material properties ensures it remains a staple in high-performance engineering and materials innovation.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Disc

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

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