MachineU > China Products
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Specifications
Brand Name :
Zhongli
Model Number :
ZWC-01
Certification :
ISO CE
Place of Origin :
China
MOQ :
1kg
Payment Terms :
L/C,T/T,Western Union
Supply Ability :
40-200 ton per month
Delivery Time :
within 15 days
Packaging Details :
plastic+barrel
Chemical Composition :
WC-Co
Size :
1-50mm
Density :
14.95 g/cm3
Crushing Load :
>2000N
Shape :
Spherical
Wear Resistance :
Superior
Color :
Grey
Corrosion Resistance :
Good
Abrasive Resistance :
Excellent
Material :
Tungsten Carbide
Impact Toughness :
High
Heat Resistance :
High
Application :
Grinding and milling of hard materials
Hardness :
HRA 90-92
Description

Product Description

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.

Understanding Cemented Tungsten Carbide WC-Co

Cemented tungsten carbide is a composite material produced through powder metallurgy, consisting of tungsten carbide particles bonded with a metallic binder, usually cobalt. This combination results in a material that boasts high wear resistance, hardness, and toughness, making it ideal for demanding applications.

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. This unique structure allows for the creation of a material that can withstand extreme conditions without compromising performance.

  • 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.

The composition can be adjusted to achieve different grades of cemented carbide, with varying amounts of cobalt and WC grain sizes influencing the material's properties.

Key Properties of Cemented Tungsten Carbide WC-Co

1. Wear Resistance

One of the most critical characteristics of cemented tungsten carbide is its wear resistance. This property is essential for applications where high reliability is imperative, such as in motors and cutting tools. The addition of cobalt to the carbide enhances resistance to wear, making it suitable for high-stress environments.

2. Hardness

Hardness in cemented tungsten carbide is defined as the ability to resist plastic deformation. By adjusting the cobalt content and WC grain size, manufacturers can tailor the hardness of the carbide to meet specific needs. For instance, tools used in woodworking may require less hardness compared to those used in metalworking.

3. Toughness

Toughness is the ability of a material to resist fracture under dynamic or static loads. In cemented tungsten carbide, toughness is influenced by the cobalt content and WC grain size. The Palmqvist method is commonly used to measure the fracture toughness of these materials, with higher cobalt content generally leading to increased toughness.

4. Thermal and Mechanical Strength

Cemented tungsten carbide exhibits excellent thermal and mechanical strength, making it suitable for high-temperature applications. Cobalt's high melting point (1493°C) and its ability to form a liquid phase with WC at 1275°C contribute to the material's robustness, allowing it to maintain integrity under extreme conditions.

Applications of Cemented Tungsten Carbide WC-Co

Cemented tungsten carbide WC-Co is used across a wide range of industries due to its exceptional properties. Some of the most common applications include:

Cutting Tools

Cemented carbides are widely used in the manufacturing of cutting tools due to their ability to maintain sharpness and resist wear. They are ideal for machining hard materials such as cast iron and stainless steel.

Mining and Drilling

In the mining industry, cemented tungsten carbide is used in drill bits and other tools that require high wear resistance and toughness. Its ability to withstand harsh conditions makes it a preferred choice for geological exploration and oil drilling.

Aerospace and Automotive

The aerospace and automotive industries rely on cemented tungsten carbide for components that require high precision and durability. Engine components, metal rollers, and other critical parts benefit from the material's strength and wear resistance.

Wear-Resistant Parts

Cemented tungsten carbide is also used in the production of wear-resistant parts such as nozzles, guide rails, and bearings. These components benefit from the material's ability to withstand friction and abrasion, extending their service life.

Advantages of Cemented Tungsten Carbide WC-Co

  • Enhanced Durability: The combination of WC and Co results in a material that is both hard and tough, capable of withstanding demanding environments.
  • Versatility: With the ability to tailor the composition, cemented tungsten carbide can be customized for various applications, from cutting tools to structural parts.
  • Cost-Effective: Although initially more expensive than other materials, the longevity and performance of cemented tungsten carbide make it a cost-effective choice in the long run.
  • High Thermal Conductivity: The metallic properties of cobalt enable efficient heat dissipation, which is crucial for high-speed machining operations.

1. 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
Compressive Strength (GPa) 4.5–6.0 2.5 2.0 2.0
Elastic Modulus (GPa) 550–650 380 200 200

Key Takeaways:

  • 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.

2. Wear & Durability Performance

Media Type Relative Wear Rate Lifespan (vs. Steel) Cost Efficiency
Tungsten Carbide 1× (Benchmark) 20–50× longer Best long-term
Zirconia 1.5–2× 10–15× longer High upfront
Alumina 3–5× 5–8× longer Moderate
Steel 50–100× Baseline Low initial cost

Real-World Example:

  • In cement ball mills, WC media lasts 2+ years vs. steel’s 1–2 months.

3. Chemical & Thermal Resistance

Property Tungsten Carbide Performance Impact
Corrosion Resistance Good (pH 4–12) Cobalt-bound grades sensitive to acids; nickel-bound resists pH 1–14.
Oxidation Resistance Stable to 500°C Avoid >600°C (cobalt binder oxidizes).
Thermal Shock Moderate Avoid rapid quenching (>150°C/min).

Best For:

  • Wet grinding of abrasive slurries (e.g., mining ores).

  • Organic solvents (no chemical reaction).

4. Grinding Efficiency Metrics

  • Particle Size Reduction: Achieves nanoscale fineness (D90 < 100nm) in high-energy mills.

  • Throughput: 30–50% faster than alumina/zirconia due to higher density.

  • Contamination Risk: Near-zero (critical for battery materials, electronics).

Optimal Applications:

  • Mining: Ore pulverization (gold, copper).

  • Ceramics: Nano-powder production.

  • Paints/Inks: Color-intensive grinding.

5. Industry-Specific Advantages

Industry Benefit of WC Grinding Media
Mining 50× lifespan vs. steel in gold ore processing.
Aerospace No Fe/Ni contamination in Ti alloy powders.
Electronics Ultra-pure grinding for semiconductor materials.
Oil & Gas Drilling mud additives with minimal wear.

Performance Summary: Why Choose Tungsten Carbide?

✅ 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.

YG8 polishing WC balls

Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt BondedPrecision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt BondedPrecision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

Factory equipment

Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

Exhibition & Partner

Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

Case

Ship to Poland

Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt BondedPrecision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

Ship to France

Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt BondedPrecision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

FAQ

1. 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).

2. What certifications are available?

  • ISO 9001, RoHS, MSDS (Material Safety Data Sheet).

  • Custom certifications (e.g., ASTM B777 for WC-Co).

3. How to order custom specifications?

Provide:

  • Material to be ground (e.g., silica, lithium cobalt oxide).

  • Target particle size (e.g., D90 < 10µm).

  • Mill type (e.g., planetary, attritor).

Send your message to this supplier
Send Now

Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

Ask Latest Price
Product Detail
Brand Name :
Zhongli
Model Number :
ZWC-01
Certification :
ISO CE
Place of Origin :
China
MOQ :
1kg
Payment Terms :
L/C,T/T,Western Union
Contact Supplier
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded
Precision Cemented Tungsten Carbide Grinding Media Balls WC-Co Cobalt Bonded

Guangzhou Zhongli Technology Co., Ltd

Verified Supplier
1 Years
guangzhou
Since 2017
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Planetary Ball Mill Machine, Stirred Ball Mill, Roller Ball Mill
Employee Number :
80~110
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Tungsten Carbide Grinding Media
MachineU China Products
Contact Supplier
Submit Requirement