Guangzhou Zoli Technology Co.,Ltd.
                                                                                                           
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Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

Price Negotiable
Price: Negotiable
MOQ: 1kg
Delivery Time: within 15 days
Brand: Zhongli
Product Description
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Cemented Tungsten Carbide WC-Co: The Pinnacle of Toughness and Durability

Cemented tungsten carbide, particularly the WC-Co (tungsten carbide-cobalt) alloy, is a marvel of modern engineering. Known for its exceptional toughness and versatility, this material is indispensable across various industries such as automotive, aerospace, and mining.

Composition and Structure

The primary components of cemented tungsten carbide are tungsten carbide (WC) and cobalt (Co). Tungsten carbide provides the hardness and wear resistance, while cobalt acts as a ductile binder, enhancing the toughness of the composite.

  • Tungsten Carbide (WC): Known as the hard phase, WC contributes to the material's wear resistance and hardness.
  • Cobalt (Co): Serving as the binder phase, cobalt enhances the toughness and ductility of the composite.
Key Properties
Wear Resistance

Essential for applications where high reliability is imperative, such as in motors and cutting tools.

Hardness

Ability to resist plastic deformation, adjustable by cobalt content and WC grain size.

Toughness

Resists fracture under dynamic or static loads, measured by the Palmqvist method.

Thermal Strength

Maintains integrity under extreme conditions with cobalt's high melting point (1493°C).

Mechanical & Physical Properties
Property Tungsten Carbide (WC-6%Co) Alumina (99%) Zirconia (YTZP) Steel (440C)
Density (g/cm³) 14.6-15.0 3.9 6.0 7.8
Hardness (HRA) 90-92 80-85 88-90 60-65
Fracture Toughness (MPa*m½) 10-12 4-5 7-10 15-20
2× Harder than alumina, 3× harder than steel - Minimal wear in abrasive environments
Highest density - Delivers superior kinetic energy for efficient grinding
Exceptional compressive strength - Withstands high-load milling
Applications
  • Cutting Tools: Maintain sharpness and resist wear for machining hard materials
  • Mining and Drilling: Drill bits and tools requiring high wear resistance
  • Aerospace and Automotive: High precision components like engine parts
  • Wear-Resistant Parts: Nozzles, guide rails, and bearings with extended service life
Performance Summary
Unmatched Hardness - Lowest wear rate in extreme abrasion
High Density - Faster grinding with less energy
Chemical Stability - Resists most solvents/slurries
Longest Lifespan - ROI justified in 6-12 months
Product Images
Precision tungsten carbide grinding media balls Tungsten carbide balls close-up High-quality WC-Co grinding media Factory equipment for manufacturing
FAQ
Are there alternatives for corrosive environments?
  • WC-Ni (Nickel-Bound): Resists acids/alkalis better than WC-Co
  • SiC or ZrO₂: For extreme pH (<1 or >14)
What certifications are available?
  • ISO 9001, RoHS, MSDS (Material Safety Data Sheet)
  • Custom certifications (e.g., ASTM B777 for WC-Co)

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guangzhou Zoli Technology Co.,Ltd.
Location Room 702A, No. 585, Airport Road, Tangjing Street, Baiyun District, Guangzhou City, Self-compiled 2341
Contact Person Ain Qiu

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