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Formula: Cr
Form: Rod
Material: Chromium
CAS Number: 7440-47-3
Commodity: Metals
Purity: 99.7%
Chromium Rod is a product within Goodfellow's extensive range of rods. This metallic rod is available in 31 different variations. Chromium demonstrates excellent hardness and corrosion resistance, making it suitable for applications requiring durability, such as industrial equipment and machinery. The chromium rods are also valued for their high melting point, allowing them to withstand high temperature environments. With its range of sizes and impressive properties, the Chromium Rod meets diverse design needs across scientific research and manufacturing.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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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

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