Chapter 38: Miscellaneous chemical products

HTS heading 3810: Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or…

6 numbered lines under heading 3810, including 4 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 3810
HTS codeDescriptionUnitGeneralSpecialColumn 2
3810Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods:
3810.10.00.00Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materialskg5%Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)25%
3810.90Other:
3810.90.10.00Containing 5 percent or more by weight of one or more aromatic or modified aromatic substanceskg6.5%Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)3.7¢/kg + 60%
3810.90.20.00Consisting wholly of inorganic substanceskgFree25%
3810.90.50.00Otherkg5%Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)25%

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.