Constantan Nickel-Copper Wire from Mexico
Constantan wire, a nickel-copper alloy with roughly 55% copper and 45% nickel, provides stable electrical resistance for precision thermocouples and strain gauges. Although copper is present in higher proportion, the product is classified as a nickel alloy because nickel predominates by weight over each other element, placing it under tariff item 7505.22.00.
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm the nickel content exceeds copper content on a weight basis to justify classification as a nickel alloy
• Keep detailed specifications showing the wire is not cold-formed if claiming 7505.22.00
• Check if the end-use (e.g
• thermocouples) might trigger other tariff provisions