Tungsten Carbide Balls
Hartford Technologies supplies tungsten carbide balls for applications where extreme hardness must be accompanied by high resistance to wear and impact. Our standard material is 94% tungsten carbide and 6% cobalt binder (industry code C2), with additional formulations by request. Available in sizes from 1.5mm to 50.8mm in ABMA grades 10 through 100.
Profile
High hardness and dimensional stability make tungsten carbide balls the preferred choice for precision hydraulic valves, high-load bearings, inertial navigation systems, ball screws, linear bearings in slideways, gauging and checking instruments, and meters. Also used for ballizing to work-harden and improve fretting fatigue strength.
Chemistry
Tungsten Carbide: 94%
Cobalt binder: 6%
Industry code: C2
Characteristics
Ideal for extreme hardness with high resistance to wear and impact. Well-suited to elevated temperatures, corrosion, humidity, abrasion, and poor lubrication conditions.
Corrosion Resistance
Strong resistance to many corrosive and abrasive environments including elevated temperatures, humidity, and poor lubrication conditions.
Typical Hardness
Rockwell A 90.5-91.5. Highest hardness of any Hartford ball type.
Ball Sizes
Available in sizes from 1/16″ (1.5mm) to 2″ (50.8mm) in ABMA grades 10 through 100.
Why Choose Hartford Technologies for Tungsten Carbide Balls
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100+ years of precision supply
Trusted by OEMs in Aerospace, Medical, Automotive, and Industrial markets since 1926.
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In-stock and ready to ship
Standard sizes available for immediate shipment. $400 minimum order for stock items.
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Global manufacturing advantage
Delivering to more global destinations than single-location suppliers, giving your supply chain a built-in logistics edge.
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Custom engineered solutions
Complex assemblies and non-standard sizes are quoted individually.
Industries We Serve with Tungsten Carbide Balls
Hartford Technologies tungsten carbide balls are specified for the most demanding applications where extreme hardness, dimensional stability, and wear resistance under poor conditions are required.
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Precision Hydraulic
Precision hydraulic valves, high-pressure flow control requiring maximum hardness and dimensional stability
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High-Load Bearings
High-load bearing applications, ball screws, linear bearings in slideways requiring maximum wear resistance
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Aerospace and Navigation
Inertial navigation systems requiring absolute dimensional stability and precision under demanding conditions
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Gauging and Metrology
Gauging instruments, checking instruments, flow meters requiring extreme hardness and surface accuracy
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Ballizing and Surface Finishing
Ballizing operations to work-harden bores and improve fretting fatigue strength in machined components
Lead Times
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Standard in-stock components are available for immediate shipment. Lead times for non-stock and custom orders are determined based on specific part size, material, and required quantity.
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Hartford Technologies specializes in high-volume production runs and industrial applications. We have a $400 minimum order value for all standard in-stock bearing balls. For custom-engineered parts and assemblies, the minimum is determined by the complexity and volume of the specific requirement.
