Technical Data Sheet
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Tungsten Carbide/Cobalt Balls

Goodfellow offers a range of Tungsten Carbide/Cobalt Balls with 11 variations. Tungsten Carbide is an extremely hard ceramic material with excellent wear resistance, making it ideal for applications like ball bearings and tool tips. The cobalt binder allows the production of complex shapes through powder metallurgy techniques. Example applications of Tungsten Carbide/Cobalt Balls include ball bearings for machines operating under high loads and temperatures, abrasion resistant media for grinding and polishing, and tool tips for machining hard materials like ceramics or stone. With 18 size variations, Goodfellow's tungsten carbide/cobalt balls accommodate diverse industrial needs.
Diameter: 0.35mm
Quantity: 100 piece
Technical Name: Tungsten Carbide/Cobalt
Formula: WC 94/Co 6
Density: 14.95g/cm³
Type: Precision Sphere
Sphericity: 0.625µm
UOM Code: 426-364-56
SKU: 1000169574
Product Code: W-60-SP-000104

Tolerances

Balls
Diameter Standard ±5%
Diameter Precision See Item
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Tolerances

Balls
Diameter Standard ±5%
Diameter Precision See Item
Technical Data Sheet
Safety Data Sheet

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Material Properties for Ceramics

Mechanical Properties
Element Value
Poisson's ratio 0.21-0.22
Tensile modulus( GPa ) 600
Hardness - Vickers( kgf mm⁻² ) 1550
Tensile strength( MPa ) 1440
Thermal Properties
Element Value
Upper continuous use temperature( C ) 600-630
Specific heat( J K⁻¹ kg⁻¹ ) 200-480@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 60-80@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 4.6-5@20-1000°C
Physical Properties
Element Value
Density( gcm⁻³ ) 14.95
Pultrusions
Element Value
Compressive strength( MPa ) 5300-7000
Electrical Properties
Element Value
Volume resistivity( Ohmcm ) 2x10⁻⁶@25
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