Constantan Unwrought Wire Alloy from Mexico
Unwrought form of Constantan (55% Cu, 45% Ni) resistance alloy for thermocouples and resistors. Copper-nickel base alloy under HTS 7403.29.0110 with nickel nearly equal but predominant over others.
Duty Rate — Mexico → United States
1%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Distinguish unwrought pellets from drawn wire (7413)
• Electrical resistivity specs aid classification