Tungsten Boride WB2 from Japan
Tungsten diboride (WB2) is an ultra-hard ceramic material used in wear-resistant coatings and cutting tools. Classified under HTS 2850.00.10.00 as a boride of tungsten, meeting chemically defined criteria. It exhibits high melting point and chemical stability for extreme environments.
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 XRF or ICP analysis confirming tungsten-boron stoichiometry to validate subheading 2850.00.10
• Avoid bulk packaging over 25kg which may trigger hazardous material shipping declarations
• Confirm not mixed with carbon binders, as carbide exclusions apply per heading 2849