Chromium Bar

Formula: Cr

Form: Bar

Material: Chromium

CAS Number: 7440-47-3

Commodity: Metals

Purity: 99.7%

Side Length: 2mm

Side Length (Of Longer Side): 2mm

Length: 100mm

Chromium Bar is just one of our many high-grade metal products. It is available in a wide range of diameters and lengths to suit various engineering and manufacturing needs. Chromium has excellent corrosion resistance and hardness, making it ideal for applications requiring durability, strength, wear resistance and corrosion protection. Its exceptional range of properties see it used in valves, tooling, molds and machinery components. Thanks to our comprehensive choice of chromium bar sizes, scientists and engineers will find the optimal one to meet their specific project needs.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Bar

Side Length	=<10mm	±10%
Side Length	>10mm	±1mm
Side Length (Of Longer Side)	>10mm	±1mm
Side Length (Of Longer Side)	=<10mm	±10%
Length	<100mm	±1mm
Length	>=100mm	+5% / -1%

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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Chromium Bar

Tolerances

Material Properties for Metals