High-Purity Ammonium Perrhenate for Superalloy Production from Japan
This high-purity grade (>99.99% Re) ammonium perrhenate serves as the key raw material for producing rhenium powder used in nickel-based superalloys for turbine blades. It falls under HTS 2841.90.20.00 due to its specific chemical definition as the ammonium salt of perrhenic acid.
Duty Rate — Japan → United States
3.1%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Obtain supplier's certificate of analysis specifying rhenium content and impurities for CBP verification
• Declare as 'ammonium perrhenate' exactly; generic 'rhenium compounds' may trigger reclassification
• Check end-use certificate requirements for defense-related superalloy applications