Other
Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium (columbium), and articles of these metals, including waste and scrap. > Beryllium: > Other > Other
Duty Rate (from China)
Products classified under Tariff item 8112.39.00.00
Hafnium Crucible Liners
Custom-machined hafnium liners designed to fit inside crystal growth crucibles used in semiconductor manufacturing. These are finished articles of hafnium, not raw forms, and fall under tariff item 8112.39.00 as 'other' articles of hafnium.
8112.39.00Hafnium Evaporation Pellets
Small hafnium pellets used in vacuum deposition processes to create thin-film coatings on semiconductors and optical components. These are processed hafnium articles beyond unwrought powder, classified under tariff item 8112.39.00 as 'other' hafnium products.
8112.39.00Hafnium Foil for Superalloy Cladding
Thin hafnium foil sheets used to clad nickel superalloy turbine blades, providing oxidation resistance at high temperatures. These are wrought hafnium products in sheet or foil form, classified under tariff item 8112.39.00 as 'other' hafnium articles.
8112.39.00Hafnium Getter Alloy Discs
Sintered hafnium discs alloyed with zirconium, used as getters in vacuum tubes to absorb residual gases. These are hafnium-dominant articles (over 99% hafnium by weight) and are classified under tariff item 8112.39.00 as 'other' hafnium articles.
8112.39.00Hafnium Master Alloy Ingot
Compact ingots of hafnium with trace elements, used as master alloys in superalloy production for jet turbine blades. These are hafnium-dominant articles with hafnium content at or above 99%, classified under tariff item 8112.39.00 as 'other' hafnium articles, provided they are not unwrought powder.
8112.39.00Hafnium Reactor Control Rod Segments
Machined hafnium segments designed for nuclear reactor control rods, which absorb neutrons to regulate fission. These are specialized articles of hafnium fabricated beyond basic wrought forms, classified under tariff item 8112.39.00 as 'other' hafnium articles.
8112.39.00Hafnium Sponge
Porous hafnium metal produced by reducing hafnium tetrachloride with magnesium, used in nuclear reactor control rods and aerospace alloys. This is a form of hafnium beyond unwrought powder, classified under tariff item 8112.39.00 as 'other' hafnium not specified elsewhere.
8112.39.00Hafnium Wire for Additive Manufacturing
High-purity hafnium wire spooled for use in laser powder bed fusion additive manufacturing for aerospace prototyping. This is a wrought hafnium product in wire form, classified under tariff item 8112.39.00 as 'other' hafnium articles beyond standard profiles.
8112.39.00High-Purity Hafnium Granules
Granular hafnium with purity above 99.95%, used for plasma spray coatings on rocket nozzles. These sized granules are treated as 'other' hafnium articles beyond unwrought powder specifications, classified under tariff item 8112.39.00.
8112.39.00Recovered Hafnium Machining Scrap
Clean hafnium turnings and chips recovered from aerospace component machining, suitable for remelting. These are processed scrap forms of hafnium, classified under tariff item 8112.39.00 as 'other' hafnium articles, separate from raw waste.