Nickel Thermocouple Base Wire Type K
Pure nickel leg wire for Type K thermocouples, used in temperature sensors, in non-cold-formed straight lengths. Fits HTS 7505.21.50.00 as non-alloyed nickel wire.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If assembled into full thermocouple
Complete temperature sensors classify as thermometers, not raw wire.
If fiber optic with nickel conductor
Winding wire for ignition coils or magnets uses insulated Chapter 85 codes.
If nickel powders for thermocouples
Powder forms for sintering classify under nickel powders and flakes.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Thermocouple specification sheets must confirm pure nickel (not Chromel/Alumel alloy)
• Avoid cold-forming confusion by providing as-cast or hot-rolled form evidence
• Bundle with insulation at peril—insulated versions go to electrical wire chapters
Related Products under HTS 7505.21.50.00
Pure Nickel Welding Wire 0.035 inch
A straight spool of pure nickel wire with a diameter of 0.035 inches, used primarily for welding applications in corrosive environments. Classified under HTS 7505.21.50.00 as non-alloyed nickel wire that is not cold-formed, distinguishing it from drawn or shaped variants.
Nickel Anode Rod Wire 1/8 inch
Soft pure nickel wire formed into rods for use as sacrificial anodes in electroplating baths and cathodic protection. Falls under HTS 7505.21.50.00 for non-alloyed nickel wire not subjected to cold-forming processes.
Pure Nickel Resistance Wire 24 AWG
High-purity nickel wire in 24 AWG size for heating elements and precision resistors in laboratory equipment. HTS 7505.21.50.00 applies to this not cold-formed, non-alloyed nickel wire product.
Pure Nickel Battery Tab Wire 0.15mm
Thin pure nickel wire for battery tab connections in lithium-ion cells, produced via hot processes without cold-forming. HTS 7505.21.50.00 covers this non-alloyed wire specification.
Nickel Evaporation Wire 1mm Pellets
Pure nickel wire segmented into 1mm pellets for vacuum evaporation in thin-film deposition, not cold-formed. Classified under HTS 7505.21.50.00 for non-alloyed wire.
Pure Nickel Dummy Run Wire 2mm
2mm pure nickel wire used for dummy runs in continuous casting and extrusion trials. HTS 7505.21.50.00 for its non-alloyed, not cold-formed wire characteristics.