Constantan Unwrought Wire Alloy from Japan
Unwrought Constantan alloy in wire form, composed of approximately 55% copper and 45% nickel, used for thermocouples and precision resistors. As a copper-nickel base alloy where nickel predominates over other elements, it qualifies as an 'other copper alloy' under tariff item 7403.29.00.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the alloy composition is documented (e.g
• mill certificate) to prove copper-nickel base status
• Declare the copper content accurately for duty calculation
• Check if the wire form meets the 'unwrought' definition—if drawn or worked, it may fall under another heading