Pickling 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

Every line of heading 3810

• 3810 Pickling 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.
• 3810.10.00.00 Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials (kg): General 5%; Special Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG); Column 2 25%.
• 3810.90 Other (under: Pickling 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).
• 3810.90.10.00 Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances (kg): General 6.5%; Special Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG); Column 2 3.7¢/kg + 60%.
• 3810.90.20.00 Consisting wholly of inorganic substances (kg): General Free; Special none; Column 2 25%.
• 3810.90.50.00 Other (under: Other) (kg): General 5%; Special Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG); Column 2 25%.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.