High-Purity Hafnium Granules
Granular hafnium with purity above 99.95% used for plasma spray coatings on rocket nozzles. These sized granules are classified as 'other' hafnium articles, beyond unwrought powder specifications.
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 |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the granules are classified as powders
Hafnium powders are classified separately from other hafnium articles.
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 granules are not classified as powders (90% or more passing a 1mm sieve), which would fall under a different subheading
• Provide the CBSA with the exact particle size distribution and purity certificate
• Ensure the granules are not considered unwrought hafnium
Related Products under Tariff item 8112.39.00
Hafnium Crucible Liners
Custom-machined hafnium liners designed for crystal growth crucibles used in semiconductor production. These are specialized articles of hafnium, fabricated to precise dimensions, and fall under this tariff item as 'other' articles of hafnium.
Hafnium Evaporation Pellets
Small hafnium pellets used in vacuum deposition processes for thin-film coatings in semiconductors and optics. These are not unwrought powder but fabricated articles of hafnium, classified as 'other' under this tariff item.
Hafnium Foil for Superalloy Cladding
Thin hafnium foil sheets used to clad nickel superalloy turbine blades for oxidation resistance. These are flat-rolled products of hafnium, not exceeding one-tenth of the width in thickness, and fall under this tariff item as 'other' hafnium articles.
Hafnium Getter Alloy Discs
Sintered hafnium discs with zirconium used as getters in vacuum tubes to absorb residual gases. These are hafnium-dominant articles, with hafnium content exceeding 99% by weight, and are classified as 'other' articles of hafnium.
Hafnium Master Alloy Ingot
Compact ingot of hafnium with trace elements used for alloying in superalloys, particularly for jet turbine blades. With hafnium content at or above 99%, this is classified as 'other' articles of hafnium, not unwrought powder.
Hafnium Reactor Control Rod Segments
Machined hafnium segments for nuclear reactor control rods that absorb neutrons. These are specialized articles of hafnium, fabricated for nuclear applications, and fall under this tariff item as 'other' hafnium articles.