Nickel Thermocouple Sheath from Mexico
Protective tube-shaped sheath of pure nickel for housing thermocouple wires in high-temperature environments. Falls under HTS 7508.90.50.00 as other nickel articles, fabricated beyond simple tubing. Used in industrial sensors for corrosion resistance.
Duty Rate — Mexico → United States
3%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Specify wall thickness and end fittings in invoice to prove it's a fabricated sheath, not tube
• Obtain supplier certification of nickel content >99% for accurate Chapter 75 classification
• Comply with NIST standards documentation for temperature measurement devices