Samarium Cobalt Disc Magnets from Japan
Rare-earth samarium-cobalt (SmCo) disc-shaped magnets supplied unmagnetized for high-temperature applications like aerospace motors. Classified in HTS 8505.19.3000 as 'other' permanent magnet articles intended for post-magnetization. They offer superior thermal stability over standard neodymium types.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide alloy certificates proving SmCo composition to distinguish from cheaper ferrite alternatives during customs review
• Declare intended end-use (e.g
• aerospace) in documentation to support classification and potential duty exemptions
• Ensure packaging prevents corrosion, as oxidation can lead to reclassification or rejection at entry