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
Hardness :
HRA 90-92
Size :
1mm-20mm
Application :
Grinding and milling of hard materials
Impact Toughness :
High
Wear Rate :
Low
Material :
Tungsten Carbide
Color :
Silver
Heat Resistance :
High
Chemical Composition :
WC-Co
Shape :
Spherical
Abrasion Resistance :
Excellent
Density :
14.6 g/cm3
Corrosion Resistance :
Good
Description

Product Description

Diamond’s Cousin: Tungsten Carbide Grinding Ball Near-Diamond Hardness at a Fraction of the Cost

In the realm of industrial materials, few substances can boast the remarkable hardness and durability of diamond. However, for those seeking near-diamond hardness without the exorbitant cost, tungsten carbide grinding balls offer a compelling alternative. Known for their extreme hardness, wear resistance, and cost-effectiveness, these grinding balls are essential in various applications, from manufacturing to mining.

Understanding Tungsten Carbide: The Basics

Tungsten carbide is a chemical compound composed of tungsten and carbon atoms. It is renowned for its exceptional hardness, which is only surpassed by a few materials, such as diamond and cubic boron nitride. With a Mohs hardness rating of approximately 9 and a Vickers hardness of around 2400 HV, tungsten carbide is an ideal choice for applications that require high durability and wear resistance.

Key Properties of Tungsten Carbide Grinding Balls

  1. High Hardness: Tungsten carbide grinding balls offer a hardness level that rivals some of the hardest materials known to man. This makes them suitable for grinding and milling hard materials like ores, ceramics, and glass.
  2. Wear Resistance: Due to their high hardness, tungsten carbide grinding balls exhibit low wear rates during grinding processes. This extends their service life significantly compared to ordinary steel balls.
  3. Chemical Stability: Tungsten carbide grinding balls are chemically stable in most environments, including acidic and alkaline solutions. This stability ensures that they do not react with materials being ground, maintaining the quality of the final product.
  4. Density: With a density range of 14-15 g/cm³, tungsten carbide grinding balls have greater kinetic energy during the grinding process, making them more effective in crushing and grinding materials.

Applications of Tungsten Carbide Grinding Balls

Tungsten carbide grinding balls are utilized across various industries due to their unique properties. Here are some common applications:
  • Manufacturing: Used in the production of industrial cutting tools, tungsten carbide grinding balls help achieve precision in machining processes.
  • Mining: These balls are essential in grinding and milling operations, where they assist in breaking down ores into finer particles for further processing.
  • Pharmaceuticals: In the pharmaceutical industry, tungsten carbide grinding balls are used for grinding and milling active pharmaceutical ingredients (APIs) to achieve the desired particle size.
  • Ceramics and Electronics: The high hardness and wear resistance of tungsten carbide grinding balls make them suitable for producing ceramic and electronic components.

Comparative Analysis: Tungsten Carbide vs. Diamond

When considering materials for high-hardness applications, it's essential to compare tungsten carbide with diamond and other hard materials.

Hardness Comparison

  • Diamond: With a Mohs hardness of 10 and a Vickers hardness of approximately 10,000 HV, diamond is the hardest known material. However, its high cost limits its use to specialized applications.
  • Tungsten Carbide: While not as hard as diamond, tungsten carbide offers a Mohs hardness of around 9 and a Vickers hardness of 2400 HV. Its cost-effectiveness makes it a popular choice for bulk applications.

Cost and Economic Aspects

  • Diamond: Due to its scarcity and high demand, diamond is expensive, making it suitable only for niche applications.
  • Tungsten Carbide: Known for its excellent cost-to-performance ratio, tungsten carbide is widely used in industrial settings where bulk applications are required.

Advantages of Tungsten Carbide Grinding Balls

  1. Cost-Effectiveness: Tungsten carbide grinding balls provide near-diamond hardness at a fraction of the cost, making them an economical choice for many industries.
  2. Versatility: These grinding balls can be used in a wide range of applications, from precision machining to heavy-duty mining operations.
  3. Durability: With their exceptional hardness and wear resistance, tungsten carbide grinding balls offer a long service life, reducing the need for frequent replacements.
  4. Environmental Stability: The chemical stability of tungsten carbide ensures that it can withstand harsh environments without degrading, maintaining the integrity of the materials being processed.

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

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FAQ

1. What is tungsten carbide grinding media?

Tungsten carbide grinding media consists of WC (tungsten carbide) particles bonded with cobalt (Co) or nickel (Ni). It is the hardest and most wear-resistant grinding material available, ideal for abrasive and high-impact milling.

2. What are the advantages over steel, alumina, or zirconia media?

  • Hardness (HRA 90+): 3× harder than steel, 2× harder than alumina.

  • Density (14–15 g/cm³): Higher kinetic energy for faster grinding.

  • Wear Resistance: Lasts 20–50× longer than steel in abrasive slurries.

  • Contamination-Free: No iron/nickel leaching (critical for batteries, electronics).

3. What grades/binders are available?

  • Cobalt-Bonded (WC-Co): 6%, 8%, 10% Co (standard for toughness).

  • Nickel-Bonded (WC-Ni): Better corrosion resistance (pH 1–14).

  • Ultra-Fine Grain: Sub-micron WC for nano-grinding.

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Anti Wear Milling Tungsten Carbide Grinding Media 1mm-20mm OEM

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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
Anti Wear Milling Tungsten Carbide Grinding Media 1mm-20mm OEM
Anti Wear Milling Tungsten Carbide Grinding Media 1mm-20mm OEM
Anti Wear Milling Tungsten Carbide Grinding Media 1mm-20mm OEM
Anti Wear Milling Tungsten Carbide Grinding Media 1mm-20mm OEM
Anti Wear Milling Tungsten Carbide Grinding Media 1mm-20mm OEM

Guangzhou Zhongli Technology Co., Ltd

Verified Supplier
1 Years
guangzhou
Since 2017
Business Type :
Manufacturer, Exporter, Trading Company
Employee Number :
80~110
Certification Level :
Verified Supplier
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