Nickel Thermocouple Sheath
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as plain nickel tube without thermocouple-specific machining
Nickel tubes and pipes classify under heading 7507, not fabricated articles.
If assembled with thermocouple wire into complete sensor
Complete thermocouples and temperature sensors fall under heading 9025.
If made of nickel alloys rather than pure nickel
Other articles of iron or steel with nickel content classify under Chapter 73.
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Import Tips & Compliance
• 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
Related Products under HTS 7508.90.50.00
Nickel Wire Mesh Screen
A fine mesh screen woven from pure nickel wire, used for filtration in chemical processing equipment. It falls under HTS 7508.90.50.00 as an other article of nickel, not specified elsewhere in Chapter 75. This classification applies to fabricated nickel products beyond basic forms like bars or plates.
Nickel Crucible for Laboratory Use
A small, high-purity nickel crucible designed for melting and holding corrosive substances in lab settings. Classified under HTS 7508.90.50.00 as other articles of nickel due to its specialized fabricated shape. Not a basic plate or tube, it serves as lab ware.
Nickel Anode Basket for Electroplating
Perforated basket made from nickel mesh to hold anodes during electroplating baths. It is an other article of nickel under HTS 7508.90.50.00, as a fabricated industrial component. Distinct from raw nickel shapes due to its assembled, functional design.
Nickel Evaporation Boat for Vacuum Deposition
Small, boat-shaped nickel container used to hold materials for evaporation in vacuum coating processes. Classified as other articles of nickel under HTS 7508.90.50.00 due to its precision-formed shape for semiconductor manufacturing. Not a basic foil or sheet.
Nickel Spacer Ring for Aerospace Fasteners
Precision-machined ring-shaped spacer made from pure nickel for use in aerospace turbine assemblies. It is an other article of nickel per HTS 7508.90.50.00, as a fabricated component. Provides corrosion resistance in high-stress environments.
Nickel Catalyst Support Grid
Expanded metal grid of nickel designed to support catalyst beds in chemical reactors. Falls under HTS 7508.90.50.00 as other fabricated nickel articles. Engineered for high-temperature, corrosive gas environments.