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HSChapter 38
U.S. exports of pickling preparations for metal surfaces & soldering/brazing/welding powders and pastes (HS 381010) totaled $24.0M in July 2026.
Importers of Pickling Preparations for Metal Surfaces & Soldering/Brazing/Welding Powders and Pastes paid $427K in duties in July 2026 — an effective duty rate of 17% on $2.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataClassified under a single 10-digit line (3810100000), these chemical preparations serve two distinct functions: removing oxide scale and corrosion from metal surfaces before finishing, and acting as metal-bearing powders or pastes that facilitate soldering, brazing, or welding joints. Mexico leads US import supply, followed by Japan and Canada, reflecting deep integration with North American manufacturing and the strong Japanese presence in precision electronics assembly materials. Importers should confirm whether a specific formulation is classified here or under a flux-based heading, as the distinction turns on whether the active ingredient is a metal constituent versus an auxiliary chemical agent.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
290 shipments/mo
Pickling preparations under 381010 are designed to chemically clean or descale metal surfaces, or consist of metal-containing powders and pastes used in joining processes. Fluxes under 381090 are auxiliary chemical agents that prevent oxidation during soldering or welding but do not themselves consist primarily of metal material. The distinction often turns on formulation composition; consult a licensed customs broker when a product could plausibly fall under either heading.
Imports from China may be subject to Section 301 tariffs depending on the specific product formulation and applicable tariff line. Importers should verify current Section 301 exposure for 3810100000 with a licensed customs broker before shipment.
Subheading 1 of 2 in heading 3810
Subheading 381010 · $6.5M of $11.6M
ImportsExports
Imports
$6.5MYoY · Pro
Exports
$24.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Mexico and Korea, South together take 67% of it.
customs district
origin
entry
rate provision · imports
61.9% enters free of duty; the effective duty rate is 6.58%.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3810100000 | Pickling Prep for Metal Surfaces, Soldering, Etc | $6.5M | 6.58% | 38.60% | $427K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3810100000 | Pickling Prep for Metal Surfaces, Soldering, Etc | $24.0M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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