Tungsten Carbide Spheres and Balls
High-Precision Tungsten Carbide Balls for Critical Applications
VBM tungsten carbide spheres and balls are precision-manufactured to exacting dimensional and surface finish standards for use in valves, bearings, flowmeters, and other applications requiring the unique combination of high density, extreme hardness, and superior wear resistance that tungsten carbide provides.
Request a Quote View SpecificationsKey Features
Precision Sphericity
Ground and lapped to high-precision sphericity grades, ensuring accurate sealing, smooth rolling, and consistent performance in critical applications.
High Density
Density of approximately 15 g/cm3 provides advantages in applications where weight per unit volume is important, such as valve sealing and ballistic use.
Extreme Hardness
Hardness values exceeding 89 HRA ensure resistance to deformation and wear, maintaining precision geometry throughout extended service life.
Corrosion Resistance
Tungsten carbide is chemically inert in most environments, providing reliable performance in corrosive fluids where steel balls would degrade.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Tungsten Carbide Spheres / Balls |
| Material | Tungsten Carbide (WC-Co) |
| Available Grades | VK6, VK8, VK15 |
| Diameter Range | 0.5 mm to 50 mm |
| Sphericity | Grade 10 to Grade 100 (ISO 3290) |
| Surface Finish | Ra less than 0.02 um (polished) |
| Hardness (HRA) | 87.0 - 91.5 |
| Density | 14.6 - 15.1 g/cm3 |
| Compressive Strength | Greater than 5000 MPa |
| Magnetic Properties | Non-magnetic (VK6 grade) |
Application Areas
Valve Applications
Ball valve seats and check valve elements where precision sphericity and wear resistance ensure reliable sealing over millions of operating cycles.
Precision Bearings
Ball bearing elements for applications requiring extreme wear resistance and load capacity beyond the capability of steel bearing balls.
Flow Measurement
Precision balls for flowmeter and level sensor mechanisms where consistent density and dimensional accuracy are essential for measurement reliability.
Grinding Media
Dense tungsten carbide balls used as grinding media in ball mills for ultra-fine particle size reduction in pharmaceutical and materials processing.
Related Products
Request a Quote for Carbide Spheres
Contact our technical team for pricing, availability, and custom configurations. We provide fast delivery across the UAE and the entire Middle East region.
Tungsten Carbide Spheres: Precision and Durability in Every Ball
Tungsten carbide spheres represent one of the most demanding products in the carbide manufacturing portfolio, requiring precision control over both the material properties and the geometric accuracy of the finished ball. VBM produces tungsten carbide balls that meet the stringent requirements of valve, bearing, and measurement instrument applications, where precision sphericity, consistent density, and extreme hardness are non-negotiable performance characteristics.
The manufacturing process for precision carbide spheres begins with carefully controlled powder preparation and pressing to produce near-net-shape green compacts. After sintering, the balls undergo a multi-stage grinding and lapping process that progressively refines both the sphericity and surface finish to the required grade. The final polishing step produces a mirror-smooth surface with roughness values below 0.02 micrometers, essential for sealing applications and low-friction rolling contacts.
Tungsten carbide balls offer unique advantages over steel in several applications. Their extreme hardness prevents deformation under high contact loads, their chemical inertness provides corrosion resistance in aggressive fluid environments, and their high density makes them effective as sealing elements where weight assists in maintaining contact with the seat. These properties make carbide spheres the preferred choice for critical valve applications in the oil and gas, chemical processing, and pharmaceutical industries.
VBM Middle East stocks standard tungsten carbide sphere sizes at our Dubai facility and can supply custom diameters from the manufacturing plant. Our team can advise on the optimal grade and precision grade for your specific application. Whether you need a handful of precision balls for instrument calibration or bulk quantities for valve assembly, contact us for competitive pricing and reliable delivery.