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Cobalt Grinding Balls - 40mm W 100g

Details

SKU: 1000002278 Product Code: CO00-LP-000120
Cobalt Grinding Balls are precision-engineered wear-resistant spheres designed for use in high-impact milling, crushing, and dispersion processes. Known for their exceptional hardness, toughness, and corrosion resistance, these grinding media excel in demanding environments such as mineral processing, powder metallurgy, and advanced ceramics production. Their ability to maintain structural integrity under high pressure and temperature makes them valuable in both wet and dry milling operations. Industries including mining, cement, specialty alloy manufacturing, and advanced materials research utilize cobalt grinding balls for tasks such as comminution of hard ores, homogenization of ceramic slurries, and dispersion of metal or oxide powders. Technologies benefiting from cobalt grinding balls include high-energy ball mills for nanomaterial synthesis, precision dispersion mills for functional coatings, and wear-intensive mixing equipment. Ongoing research explores surface engineering, microstructural optimization, and alloying strategies to enhance wear life and milling efficiency. Their balance of mechanical durability and chemical resilience secures their position as a critical tool in industrial and scientific milling operations.
Formula: Co
Percentage Purity: 99.8%
Product Shape: Grinding Ball
Maximum Lump Size: 40mm
Weight: 100g
Type: Nominal 30mm
CAS Number: 7440-48-4
UOM Code: 019-053-08
Legacy Code: CO006120
Distributor Code:
GF01905308

Health hazard/Hazardous to the ozone layer

Serious health hazard

Tolerances

Pellet/Lump
Maximum Lump Size Nominal
$330.00
each
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Material Properties

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°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