Cobalt Spooled Wire

Cobalt Spooled Wire is a versatile material offered by Goodfellow in 76 variations. Known for its high melting point, cobalt wire is an excellent choice for applications requiring high-temperature strength and corrosion resistance. With its magnetic properties, cobalt wire sees widespread use in sensors and actuators. Whether your project calls for a cobalt-chromium alloy or pure cobalt, you're sure to find a cobalt wire in Goodfellow's extensive range to meet your needs.

Formula: Co
Percentage Purity: 99.99%
Product Shape: Spooled
Diameter: 0.25mm
Length: 0.1m
Temper: Hard
CAS Number: 7440-48-4
UOM Code: 045-631-87

SKU: 1000006423

Product Code: CO00-WR-000100

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Tolerances

Wire

Diameter		±10%
Length		+5% / -1%

Health hazard/Hazardous to the ozone layer

Serious health hazard

Tolerances

Wire

Diameter		±10%
Length		+5% / -1%

Technical Data Sheet

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Safety Data Sheet

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$309.06

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Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	27
Crystal structure	Hexagonal close packed
Electronic structure	Ar 3d⁷ 4s²
Valences shown	2, 3
Atomic weight( amu )	58.9332
Thermal neutron absorption cross-section( Barns )	37.5
Photo-electric work function( eV )	5
Atomic radius - Goldschmidt( nm )	0.125
Ionisation potential( No./eV )	2/ 17.06
Ionisation potential( No./eV )	4/ 51.3
Ionisation potential( No./eV )	3/ 33.5
Ionisation potential( No./eV )	1/ 79.5
Ionisation potential( No./eV )	1/ 79.5
Ionisation potential( No./eV )	6/ 102

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.32
Poisson's ratio	0.32
Bulk modulus( GPa )	181.5
Bulk modulus( GPa )	181.5
Tensile modulus( GPa )	211
Tensile modulus( GPa )	211
Hardness - Vickers( kgf mm⁻² )	320
Hardness - Vickers( kgf mm⁻² )	170
Tensile strength( MPa )	1135
Tensile strength( MPa )	760
Yield strength( MPa )	345-485

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	6.34@20@20°C
Temperature coefficient( K⁻¹ )	0.0066@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	-1.33

Physical Properties

Element	Value
Boiling point( C )	2870
Density( gcm⁻³ )	8.9@20°C

Thermal Properties

Element	Value
Melting point( C )	1495
Latent heat of evaporation( J g⁻¹ )	6490
Latent heat of fusion( J g⁻¹ )	263
Specific heat( J K⁻¹ kg⁻¹ )	456@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	100@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	12.5@0-100°C