Cobalt Balls
Precision ground cobalt balls for bearings and valves in corrosive environments. Under HTS 8105.90.00.00 as other cobalt articles, high sphericity. Alternative to tungsten carbide.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If bearing balls assembled
Balls in bearing sets classify under Chapter 84 ball bearings.
If other steel articles
Cobalt steel alloy balls go to Chapter 73 as other steel articles.
If conveyor parts
Balls as conveyor roller parts become Chapter 84 machinery parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Roundness tolerance specs confirm finished balls vs. rough spheres
• Sold individually vs sets affects packaging classification
• Size grading prevents bulk metal powder reclassification
Related Products under HTS 8105.90.00.00
Cobalt Wire
High-purity cobalt wire used in electronics and medical applications, such as thermocouples and implants. Classified under HTS 8105.90.00.00 as an article of cobalt, not a matte or intermediate product. Meets the chapter definition for cobalt content exceeding other metals.
Cobalt Rods
Solid cobalt rods employed in aerospace alloys and cutting tools due to high strength. Falls under HTS 8105.90.00.00 as 'other articles thereof,' excluding waste/scrap or intermediates. Primary cobalt content defines classification per US notes.
Cobalt Powder
Fine cobalt powder for powder metallurgy in battery cathodes and hardfacing. HTS 8105.90.00.00 covers unwrought forms like powder as cobalt articles, distinct from mattes. Excludes alloys per chapter alloy definition.
Cobalt Foil
Thin cobalt foil for evaporation targets in thin-film deposition and shielding. As a fabricated article of cobalt, it fits HTS 8105.90.00.00 'other,' with cobalt >99% weight per notes. Used in semiconductor manufacturing.
Cobalt Targets
Sputtering targets made of pure cobalt for PVD coating in microelectronics. HTS 8105.90.00.00 includes shaped articles like targets as 'other' cobalt products. High purity essential for vacuum deposition.
Cobalt Sheets
Rolled cobalt sheets for chemical processing equipment due to corrosion resistance. Under HTS 8105.90.00.00 as other articles, with cobalt as base metal >99%. Used in valve and pump fabrication.