U.S. imports of Coated Rods and Cored Wire of Base Metal for Soldering, Brazing or Flame Welding (HS 831130) totaled $14.3M in August 2026, imported from 30 countries.
Importers of Coated Rods and Cored Wire of Base Metal for Soldering, Brazing or Flame Welding paid $1.0M in duties in August 2026, an average duty rate of 7.20% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Coated Rods and Cored Wire of Base Metal for Soldering, Brazing or Flame Welding imports of $14.3M in August 2026 ran 38% above the year-to-date monthly average of $10.4M.
Last updated: August 2026 dataFiller metals designed for lower-temperature joining processes — soldering, brazing, and flame (oxy-fuel) welding — are classified under heading 8311.30, which the US schedule divides into lead-tin solders (8311303000) and all other coated rods and cored wire for these processes (8311306000). Lead-tin solders remain in use in electronics rework and plumbing repair despite RoHS-driven shifts toward lead-free alternatives in new manufacturing. Importers of lead-containing solder should be aware of EPA and state-level restrictions on lead content in plumbing applications, which affect downstream use even if they do not alter customs classification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
185 import shipments a month
Lead-tin solders clear customs under 8311303000 without a mandatory admissibility permit, but downstream use is regulated. The EPA restricts lead-containing solder in potable water plumbing under the Safe Drinking Water Act, and many states have additional restrictions. Importers should ensure their customers are aware of applicable end-use limitations, particularly for plumbing and electronics applications.
Coated rods and cored wire of base metal for brazing are classified under 8311306000 when the filler metal is a base metal alloy (e.g., copper-phosphorus, copper-zinc). Silver brazing alloys with a significant precious metal content may instead be classified under Chapter 71 as articles of precious metal. The silver content threshold and whether the article is considered a precious-metal product are the key classification factors.
Subheading 1 of 4 in heading 8311
Subheading 831130 · $14.3M of $30.0M
ImportsExports
Imports
$14.3MYoY · free account
Exports
$4.7MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $112.9M of Coated Rods and Cored Wire of Base Metal for Soldering, Brazing or Flame Welding and exported $48.1M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8311306000 | Coated Rods A Cored Wire, Bs Metl, Nes Fr Soldr Et | $8.2M | 8.34% | 92.28% | $685K |
| 8311303000 | Lead-Tin Solders (Coated Rods and Cored Wire) | $6.1M | 5.67% | 96.94% | $346K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8311306000 | Coated Rods A Cored Wire, Bs Metl, Nes Fr Soldr Et | $3.4M |
| 8311303000 | Lead-Tin Solders (Coated Rods and Cored Wire) | $1.3M |
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.
Trade Directory
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Imports · August 2026
origin
Thailand and Indonesia together supply 82% of it.
customs district
destination
entry
rate provision · imports
5.7% enters free of duty; duty collected equals 7.20% of imports for consumption.