C443 Arsenical Admiralty Foil 0.14mm from United States
C443 arsenical admiralty brass foil, 0.14 mm thick, unbacked, used as condenser stock. This copper-zinc alloy with arsenic and a small tin content is a brass per the subheading notes (tin less than 3%), and is classified under tariff item 7410.12.00 as copper alloy foil not exceeding 0.15 mm.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the tin content is below 3% by weight to maintain brass classification; provide an alloy certificate
• Ensure the foil is unbacked and measure thickness accurately, as the 0.15 mm threshold is critical
• Consider whether the end-use in condensers might require additional regulatory compliance (e.g
• pressure equipment directives)