Tungsten Thermocouple Wire

Tungsten-rhenium alloy wire used in Type C thermocouples for high-temperature measurement up to 2300°C. Though alloyed, if tungsten-dominant (>99% per note exclusion), it fits HTS 8101.96.00.00 as tungsten wire.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China4.4%+35.0%39.4%
🇲🇽Mexico4.4%+10.0%14.4%
🇨🇦Canada4.4%+10.0%14.4%
🇩🇪Germany4.4%+10.0%14.4%
🇯🇵Japan4.4%+10.0%14.4%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

9025.19.40Lower: 35% vs 39.4%

If assembled into complete thermocouple sensor

Finished thermocouple assemblies classify as temperature sensors in Chapter 90, not raw wire.

8101.99Lower: 13.7% vs 39.4%

If tungsten content <99% by weight

Per Chapter 81 note, low-tungsten alloys classify as 'other articles' excluding dominant base metal.

7313.00.00Lower: 35% vs 39.4%

If sold as stranded wire rope

Stranded or twisted tungsten wire may be considered wire rope under Chapter 73, regardless of material.

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Import Tips & Compliance

Submit chemical analysis certificates proving tungsten content to avoid reclassification as 'other alloys'

Differentiate from finished thermocouples, which may fall under 9025.19 if assembled

Watch for strand count; multi-strand may classify as 'cable' under different provisions