Chapter 8105 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 81.05
99.5% Cobalt Casting Ingots
Commercial-grade 99.5% cobalt casting ingots for investment casting. With cobalt content above 99%, it is considered 'not alloyed' under Chapter 81 supplementary note 1(a), and the unwrought ingots fall under 8105.20.00.
8105.20.00Aerospace Cobalt Slabs
Unwrought slabs of cobalt for jet engine alloy production. The slabs are in raw form, and cobalt content is high, so they fall under 8105.20.00 as unwrought cobalt.
8105.20.00Atomized Cobalt Powder for 3D Printing
Fine atomized cobalt powder optimized for metal additive manufacturing, classified as other cobalt powders. This unwrought form is an intermediate for producing complex cobalt-chrome parts.
8105.20.00Battery-Grade Unwrought Cobalt
Unwrought cobalt lumps for EV battery precursors. The lumps are in raw form, and cobalt is the predominant metal, so they fall under 8105.20.00 as unwrought cobalt.
8105.20.00Cobalt 99.8% Pure Unwrought Ingots
High-purity unwrought cobalt ingots with 99.8% cobalt content, produced via electrolysis for superalloy use. With purity above 99%, it is 'not alloyed' and falls under 8105.20.00 as unwrought cobalt.
8105.20.00Cobalt-Alloy Powder for Additive Manufacturing
Atomized cobalt-chromium alloy powder for additive manufacturing, used in 3D printing of medical and aerospace components. As a powder of cobalt alloy, it falls under tariff item 8105.20.00, which covers cobalt powders, including alloyed powders.
8105.20.00Cobalt Anode Bars Unwrought
Unwrought cobalt anode bars for electroplating baths, cast in form. These are not considered bars or rods under Note 9(a) as they are casting inputs, so they fall under 8105.20.00 as unwrought cobalt.
8105.20.00Cobalt-Base Biomedical Implant Alloy
Unwrought cobalt-chrome-molybdenum alloy for orthopedic implants, such as hip joints. The alloy is in raw form (e.g., ingots or billets) and cobalt predominates by weight, classifying it under 8105.20.00 as unwrought cobalt alloy.
8105.20.00Cobalt Briquettes 5g
Pressed 5g cobalt briquettes for laboratory and small-scale alloying, classified as other unwrought cobalt. These briquettes are a convenient handling form for precise alloying applications.
8105.20.00Cobalt Chips for Remelting
Machined cobalt chips suitable for remelting, classified as other unwrought cobalt. These clean intermediate products avoid waste designation and are used in alloy production.
8105.20.00Cobalt-Chromium Dental Alloy
Cobalt-chromium alloy for dental prosthetics, supplied as unwrought ingots or billets. Cobalt is the predominant metal by weight, so the alloy is classified as unwrought cobalt under 8105.20.00.
8105.20.00Cobalt Granules 1-3mm
Cobalt granules sized 1-3mm for furnace charging, classified as other unwrought products. This intermediate form sits between powder and larger pieces, suitable for metallurgical processes.
8105.20.00Cobalt Intermediate Slugs
Slug-form intermediate cobalt from hydrometallurgy with 98% cobalt content. As an intermediate product of cobalt metallurgy, it falls under 8105.20.00, which covers cobalt mattes and other intermediate products.
8105.20.00Cobalt-Iron Magnetic Alloy Billets
Billets of cobalt-iron alloy used for permanent magnets in electric motors. Cobalt predominates by weight over iron, and the billets are unwrought, so they fall under 8105.20.00 as unwrought cobalt alloy.
8105.20.00Cobalt Master Alloy Ingots for Superalloys
Unwrought cobalt-based master alloy ingots (Co-Cr-W) for turbine blade production. Cobalt is the predominant metal, and the ingots are in raw form, so they fall under 8105.20.00 as unwrought cobalt alloy.
8105.20.00Cobalt-Molybdenum Wear-Resistant Alloy
Unwrought cobalt-molybdenum alloy pigs for casting wear-resistant parts like valve seats. Cobalt is the predominant metal, and the pigs are in raw form, classifying them under 8105.20.00 as unwrought cobalt alloy.
8105.20.00Cobalt-Nickel Aerospace Turbine Alloy
Pigs and ingots of cobalt-nickel heat-resistant alloy for jet engine components. Cobalt is the base metal by weight, and the product is unwrought, so it falls under 8105.20.00.
8105.20.00Cobalt-Nickel Superalloy Ingots
Unwrought ingots of cobalt-nickel alloy for high-temperature applications in turbine engines. Cobalt predominates by weight, and the ingots are in raw form, classifying them under 8105.20.00 as unwrought cobalt alloy.
8105.20.00Cobalt Powder 99.9% Pure
High-purity cobalt powder at 99.9% purity, used in alloy production and additive manufacturing, classified as unwrought cobalt in powdered form. This intermediate product falls under the 'other' category for cobalt powders.
8105.20.00Cobalt Powder for Diamond Tool Production
Fine cobalt powder used as a binder for sintered diamond tools, classified as other cobalt powders. This essential intermediate is used in manufacturing cutting and drilling tools.
8105.20.00Cobalt Remelt Ingots from Matte
Unwrought cobalt remelt ingots derived from cobalt matte refining, with a cobalt content of 98-99%. These ingots are an intermediate product of cobalt metallurgy, positioned between matte and final alloying, and are commonly used in the battery and hard metal industries.
8105.20.00Cobalt Rundle for Battery Precursors
Compact cobalt rundles as precursors for battery cathode materials, classified as other unwrought cobalt. These high-density unwrought forms are used in the EV supply chain.
8105.20.00Cobalt Sponge Intermediate
Porous cobalt sponge produced by reduction processes, classified as other unwrought cobalt. Used as a precursor for powders and alloys in battery and catalyst applications.
8105.20.00Cobalt-Tungsten Cutting Tool Alloy
Unwrought cobalt-tungsten alloy for high-speed cutting tool production. Cobalt is the base metal binder, and the alloy is in raw form, so it falls under 8105.20.00 as unwrought cobalt alloy.
8105.20.00Dental Cobalt Ingots
Unwrought cobalt-chromium ingots for dental prosthetics, where cobalt predominates by weight. These ingots are classified as unwrought cobalt under tariff item 8105.20.00, as they are in a primary form for further processing into dental appliances.
8105.20.00Electrolytic Cobalt Cathodes
Cathode sheets from electrolytic refining, classified as other unwrought cobalt. Primary intermediate product for further processing into powders or alloys.
8105.20.00Electrolytic Cobalt Slabs Grade A
Grade A electrolytic cobalt slabs at 99.85% purity, produced by electrowinning. These slabs are unwrought cobalt in a form other than powder, suitable for direct use in alloying processes.
8105.20.00High-Carbon Unwrought Cobalt Rounds
Unwrought cobalt rounds with high carbon content, produced via aluminothermic reduction for tool steel alloying. These rounds are cobalt-dominant alloys in a primary form, fitting the definition of unwrought cobalt.
8105.20.00High-Purity Cobalt Flake for Alloying
Cobalt flakes of high purity for dissolving in molten steel production, classified as other unwrought forms. This intermediate avoids specific grain or shot categories.
8105.20.00Magnet Cobalt Base Ingots
Unwrought cobalt base ingots used as precursors for Alnico magnets, where cobalt is the predominant metal. These ingots are in a primary unwrought form for further alloying into magnetic materials.
8105.20.00Nano-Cobalt Powder for Catalysts
Nanoscale cobalt powder for chemical catalyst applications, classified as other powders. High surface area intermediate for hydrogenation processes.
8105.20.00Shot-Cast Unwrought Cobalt Pellets
Small, shot-cast unwrought cobalt pellets used as raw material for remelting in alloy production. These pellets are distinct from powders due to their larger particle size and casting method, fitting the unwrought cobalt category.
8105.20.00Spherical Cobalt Powder
Gas-atomized spherical cobalt powder for thermal spraying, classified as other powders. Uniform morphology for coating applications.
8105.20.00Tool Steel Cobalt Rounds
Unwrought cobalt rounds for M42 high-speed steel tools, where cobalt is a key alloying element. These rounds are in a primary form for incorporation into tool steel production.
8105.20.00Unwrought Cobalt for Superalloy Melting
Bulk unwrought cobalt ingots or slabs for vacuum arc remelting into turbine blades, classified under the other category. Excludes bars, rods, and powders.
8105.20.00Unwrought Cobalt Pellets
Cobalt metal in pellet form for remelting in metallurgy, classified as other unwrought cobalt products. Not qualifying as bars, rods, or powders, these intermediates are used in superalloy production.
8105.20.00Vacuum Cast Cobalt Ingots
Small vacuum induction melted cobalt ingots, classified as other unwrought. Premium purity for medical implant alloys.
8105.20.00Vacuum Cast Unwrought Cobalt Billets
Unwrought cobalt billets produced by vacuum induction melting, suitable for aerospace superalloys. These billets are intermediate metallurgical products, not in powder form, and fit the unwrought cobalt category.
8105.30.00Cobalt Alloy Turbine Blade Scrap
> Scrap from superalloy turbine blades containing cobalt, nickel, and chromium, sourced from aerospace engine overhauls. These blades are no longer usable as articles and are destined for metal recovery, thus qualifying as waste and scrap of cobalt under tariff item 8105.30.00.
8105.30.00Cobalt Brazing Alloy Scrap
> Scrap rods and wire from cobalt-based brazing alloys used in tool manufacturing. These are discarded as waste from production processes and are valued for their cobalt content, meeting the definition of waste and scrap under heading 81.05.
8105.30.00Cobalt Chemical Catalyst Scrap
> Spent cobalt-based catalysts from petrochemical processes, in pelleted or powdered form, containing cobalt oxide on supports. These are no longer effective as catalysts and are recovered for their cobalt content, classifying as waste and scrap of cobalt.
8105.30.00Cobalt Dental Alloy Scrap
> Scrap from cobalt-chrome dental prosthetics and crowns, collected from dental labs. These items are discarded after fabrication or use and are recovered for their cobalt content, fitting the definition of waste and scrap under tariff item 8105.30.00.
8105.30.00Cobalt Foam Filter Scrap
> Spent cobalt foam filters from molten metal casting, saturated with impurities. These filters have reached the end of their useful life and are recovered for cobalt recycling, making them waste and scrap under tariff item 8105.30.00.
8105.30.00Cobalt Magnet Scrap
> Scrap from Alnico permanent magnets containing cobalt, aluminum, and nickel, rejected from manufacturing or end-of-life electronics. These magnets are no longer usable and are processed for metal recovery, classifying as waste and scrap of cobalt.
8105.30.00Cobalt Mining Residue Scrap
Cobalt mining residue scrap consists of intermediate waste from copper-cobalt mining flotation processes, containing cobalt concentrates destined for further metallurgical recovery. This material qualifies as waste and scrap under tariff item 8105.30.00 because it is not directly usable as cobalt metal and requires additional processing. The cobalt content is the primary value driver, making it classifiable under the cobalt waste and scrap heading.
8105.30.00Cobalt Pigment Manufacturing Scrap
> Waste from production of cobalt blue pigments (CoAl2O4), as filter cakes or off-spec powder. This material is discarded during pigment manufacturing and is recovered for its cobalt content, qualifying as waste and scrap under tariff item 8105.30.00.
8105.30.00Cobalt-Plated Electronics Scrap
Cobalt-plated electronics scrap consists of circuit boards and components with cobalt hard disk platters or plating, collected for metal recovery. This product falls under tariff item 8105.30.00 because it is definitively not usable as an electronic device due to breakage, wear, or obsolescence, and its primary value lies in the cobalt content. The cobalt is present as a coating or plating, making it a form of cobalt waste and scrap for metallurgical recovery.
8105.30.00Cobalt Salt Electroplating Scrap
> Anode scrap and sludges from cobalt electroplating baths for wear-resistant coatings. These residues are spent and recovered for cobalt recycling, fitting the definition of waste and scrap under tariff item 8105.30.00.
8105.30.00Cobalt Scrap from Battery Recycling
> Waste and scrap consisting of cobalt recovered from spent lithium-ion batteries, typically in the form of shredded battery cells or black mass containing cobalt oxide. This material is destined for metal recovery, classifying as waste and scrap of cobalt.
8105.30.00Cobalt Superalloy Jet Engine Scrap
> Dismantled scrap from cobalt-bearing superalloys in jet engine components like vanes. These parts are no longer airworthy and are recovered for their cobalt content, qualifying as waste and scrap under tariff item 8105.30.00.
8105.30.00Cobalt Tool Steel Scrap
> Scrap from high-speed tool steel containing 5-12% cobalt, generated from worn cutting tools and dies. This scrap is primarily valued for its cobalt content and is recovered for metallurgical use, classifying as waste and scrap under tariff item 8105.30.00.
8105.30.00Cobalt Wire Drawing Scrap
> Fine swarf and turnings from cobalt wire production for medical implants and springs. These by-products are generated during manufacturing and are recovered for cobalt recycling, fitting the definition of waste and scrap under tariff item 8105.30.00.
8105.30.00Spent Cobalt Desiccant Scrap
> Used silica gel desiccants impregnated with cobalt chloride indicator, spent from industrial drying. These are no longer effective and are recovered for their cobalt content, qualifying as waste and scrap under tariff item 8105.30.00.
8105.90.00Cobalt Anodes
Sacrificial cobalt anodes used for cathodic protection in marine environments. These shaped articles are made of high-purity cobalt and are designed to corrode preferentially to protect submerged metal structures.
8105.90.00Cobalt Balls
Precision ground cobalt balls used in bearings and valves for corrosive environments. These high-sphericity balls are fabricated articles of cobalt, offering an alternative to tungsten carbide in demanding applications.
8105.90.00Cobalt Crucibles
High-purity cobalt crucibles used in crystal growth furnaces. These fabricated hollow articles of cobalt are designed to withstand extreme temperatures and are essential in semiconductor manufacturing processes.
8105.90.00Cobalt Discs
Circular cobalt discs used for sealing rings and wear plates in valves. These machined articles of cobalt offer high wear resistance and are classified as other articles of cobalt under this tariff item.
8105.90.00Cobalt Electrodes
Pure cobalt electrodes used for electroplating and EDM applications. These shaped electrodes are classified as articles of cobalt, used for depositing cobalt layers or as tooling in electrical discharge machining.
8105.90.00Cobalt Foil
Thin cobalt foil used for evaporation targets in thin-film deposition and shielding. This fabricated article of cobalt, with cobalt content exceeding 99% by weight, is classified under this tariff item as other cobalt articles.
8105.90.00Cobalt Ingots
Cast cobalt ingots for remelting in alloy production. These ingots are considered articles of cobalt under this tariff item, produced by vacuum induction melting for high purity, and are not mattes or intermediate products.