U.S. exports of Hot-Worked Iron or Nonalloy Steel U-Sections, 80 mm or More High (HS 721631) totaled $4.3M in August 2026.
Importers of Hot-Worked Iron or Nonalloy Steel U-Sections, 80 mm or More High paid $1.1M in duties in August 2026, an average duty rate of 49.26% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataSubject to Section 232 tariffs on steel imports, hot-rolled, drawn, or extruded U-sections of iron or nonalloy steel with a height of 80 mm or more classify under a single 10-digit line (7216310000). These structural channel sections are widely used in construction framing, industrial racking, and machinery bases. Mexico is the leading US import source, with Germany and Japan also significant suppliers. Importers should be aware that Section 232 steel tariffs apply broadly to this product, though country-specific exclusions or quota arrangements may affect the effective duty for certain origins.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
172 import shipments a month
Yes, Section 232 tariffs apply to steel U-sections under this heading. Country-specific exemptions, quota arrangements, and product exclusions have been granted and modified over time. Importers should check the most current Commerce Department and CBP guidance at the time of entry to determine whether a specific origin qualifies for an exemption or quota-based treatment.
In US tariff practice, U-sections and channel sections are effectively the same structural shape — a web with two parallel flanges — and are classified together under heading 7216. The key classification variables are the height (80 mm or more for this heading), the alloy content (nonalloy steel here), and the production method (hot-worked). Cold-formed channel sections would classify elsewhere in Chapter 72.
Subheading 3 of 12 in heading 7216
Subheading 721631 · $4.3M of $44.0M
ImportsExports
Imports
$2.3MYoY · free account
Exports
$4.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $25.4M of Hot-Worked Iron or Nonalloy Steel U-Sections, 80 mm or More High and exported $44.1M.
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 |
|---|---|---|---|---|---|
| 7216310000 | Angles, U Sect, Ios Na, Ht-Rld/Drwn/Extrd Gt/=80mm Hi | $2.3M | 49.26% | 99.40% | $1.1M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7216310000 | Angles, U Sect, Na, Ht-Rld/Drwn/Extrd Gt=80mm Hi | $4.3M |
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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Exports · August 2026
destination
Canada and Mexico together take 72% of it.
customs district
origin
entry
rate provision · imports
0.6% enters free of duty; duty collected equals 49.26% of imports for consumption.