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Formula: Co
Form: Coil
Material: Cobalt
CAS Number: 7440-48-4
Commodity: Metals
Purity:
99.8%
Temper:
As Rolled
Coil Width:
250mm
Hazard Pictogram:
GHS07,GHS08
Cobalt Coils are part of our extensive range of metal foils. Offering versatility for specialized applications, they’re available in 20 options, with thicknesses from 0.025mm to 0.500mm and a choice of sizes, tempers and finishes. Cobalt's properties like high strength, hardness and corrosion resistance at high temperatures make these foil suitable for applications in the aerospace, automotive and tooling industries among others. Our foil coils provide customized solutions for your engineering challenges requiring a thin, strong and heat-resistant metal foil.
Health hazard/Hazardous to the ozone layer
Serious health hazard
Tolerances
Coil
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
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 |