Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials
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: > Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 3810.10.00.00
Hydrochloric Acid Metal Pickling Solution
A concentrated hydrochloric acid-based solution used to remove rust and scale from steel surfaces prior to painting or galvanizing. It falls under HTS 3810.10.00.00 as a pickling preparation specifically formulated for metal surfaces, dissolving metal oxides without attacking the base metal excessively. Typically sold in industrial drums for manufacturing applications.
Phosphoric Acid Metal Descaling Paste
Thick paste containing phosphoric acid for descaling and derusting aluminum and stainless steel surfaces in aerospace and automotive repair. Classified under 3810.10.00.00 due to its role as a pickling preparation that removes oxide layers from metal via chemical reaction. Applied by brush and rinsed off after treatment.
Sulfuric Acid Steel Pickling Bath Inhibited
Inhibited sulfuric acid solution for continuous steel pickling lines in pipe and sheet manufacturing, preventing excessive base metal attack. Meets HTS 3810.10.00.00 criteria as a specialized pickling preparation for ferrous metals. Includes organic inhibitors for controlled corrosion.
Silver Solder Paste 56% Ag Flux Core
Pre-mixed silver solder paste with 56% silver content and integrated flux for HVAC and refrigeration brazing applications. Falls under HTS 3810.10.00.00 as a soldering paste consisting of metal alloys and flux materials. Provides strong, leak-proof joints on copper tubing.
Mild Steel MIG Welding Powder Flux
Granular flux powder for gasless MIG welding of mild steel, containing metal powders and deoxidizers. Classified in 3810.10.00.00 as a welding powder consisting of metal and auxiliary materials for arc stability. Used in structural fabrication and automotive repair.
Aluminum Brazing Flux Paste
Chloride-free flux paste for torch brazing aluminum heat exchangers in automotive radiators. HTS 3810.10.00.00 classification applies to auxiliary preparations containing fluorides for aluminum oxide removal during brazing. Remains active up to 600°C.
Rust Converter Pickling Primer
Tannic acid-based pickling primer that converts rust to stable iron tannate on structural steel surfaces. Under 3810.10.00.00 as metal surface pickling preparation applied before painting. Single-component, no mixing required for field use.
TIG Welding Electrode Core Powder
Metal powder blend used as extruded cores for TIG welding electrodes, containing tungsten carbide for hardfacing. HTS 3810.10.00.00 covers preparations used as cores for welding electrodes or rods. Applied in oilfield tool manufacturing.
Citric Acid Stainless Steel Passivation Gel
Thixotropic citric acid gel for passivation of stainless steel welds and surfaces, removing free iron without chlorides. Classifies under 3810.10.00.00 as pickling preparation restoring chromium oxide layer on metal. Used in pharmaceutical equipment fabrication.
Brass Brazing Paste with Silver
Homogeneous brass brazing paste alloyed with silver for plumbing fittings and marine hardware. HTS 3810.10.00.00 includes brazing pastes consisting of metal powders suspended in flux binder. High fluidity for capillary action in tight joints.
Nitric-Hydrofluoric Acid Pickling Blend
Pre-mixed nitric and hydrofluoric acid solution for pickling titanium aerospace components. Specifically formulated under HTS 3810.10.00.00 for selective oxide removal on reactive metals. Precisely balanced to prevent hydrogen embrittlement.
Hardfacing Welding Powder Alloy 600
Nickel-chromium alloy powder (600 series) for plasma transferred arc hardfacing of valve components. HTS 3810.10.00.00 classification for welding powders containing metal alloys and binders. Provides corrosion and wear resistance up to 1000°C.
Copper Phosphorus Brazing Paste
Self-fluxing copper-phosphorus brazing paste for copper-nickel heat exchanger tubes. Contains 7% phosphorus for fluxing action during 700-850°C brazing. HTS 3810.10.00.00 as brazing paste of metal with auxiliary materials.
Electroless Nickel Plating Accelerator
Fluoride-palladium accelerator solution used in electroless nickel plating baths for metal surface activation. Functions as pickling preparation under HTS 3810.10.00.00 by removing passive oxide films prior to plating. Critical for uniform plating adhesion.
Laser Welding Flux Powder
Nano-particle flux powder optimized for laser beam welding of thin stainless steel sheets, preventing oxidation. HTS 3810.10.00.00 as auxiliary preparation for high-energy density welding processes. Reduces porosity in medical device fabrication.