Zirconium Sponge Low-Hafnium Nuclear
Kroll process zirconium sponge in porous, unwrought form, with hafnium content below 0.2% (less than 1:500 ratio). This vacuum-distilled sponge is a standard precursor for Zircaloy fuel cladding and has not been pressed or compacted.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the sponge is compacted or otherwise worked
Compacted or worked zirconium is classified under other forms.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the sponge is in its raw, unwrought state and not compacted or sintered
• Provide hafnium content documentation to meet the <1:500 requirement
• Check if the sponge is subject to any nuclear material import controls
Related Products under Tariff item 8109.21.00
High-Purity Zr Granules Low-Hafnium
High-purity zirconium granules in unwrought form, containing less than 1 part hafnium per 500 parts zirconium by weight. These granules are used as melting stock for vacuum arc melting to produce sputtering targets and thin-film deposition materials.
Low-Hafnium Zirconium Ingots
Low-hafnium zirconium ingots in unwrought form, with hafnium content below 1 part per 500 parts zirconium by weight. These ingots are used in nuclear reactor components and chemical processing equipment due to their high purity and corrosion resistance.
Reactor-Grade Zirconium Billets
Reactor-grade zirconium billets with hafnium content of 0.018% or less, meeting the <1:500 ratio. These semi-finished billets are in unwrought form, not yet hot or cold worked, and are intended for forging into tubesheets for pressurized water reactors.
Zirconium Pigs Nuclear Grade
Cast zirconium pigs produced via the Kroll process, with hafnium content below 0.2% (less than 1:500 ratio). These unwrought pigs weigh 25-50 kg each and are used as primary material for remelting into reactor cladding.
Zirconium Powder 99.5% Pure Low-Hafnium
Atomized zirconium powder with 99.5% purity and hafnium content below the 1:500 ratio. This unwrought powder, with particle size -100 mesh, is used in powder metallurgy and additive manufacturing applications.