C69430 Silicon Bronze Tube from Mexico
Condenser tube of C69430 silicon bronze, copper-silicon alloy classified under 'other' copper alloys in HTS 7411.29.50.00. Meets bronze definition indirectly through chapter notes; used in marine cooling systems.
Duty Rate — Mexico → United States
53%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Provide UNS designation and heat analysis; silicon bronzes often need special customs review
• Ensure tubes meet ASTM B96 specs for proper Schedule B/HTS matching
• Avoid declaring as 'copper tube' generically; specify alloy to prevent duty evasion claims