U.S. imports of Welded Iron & Steel Tubing with Noncircular Cross-Section (SITC 67944) totaled $59.2M in September 2026, imported from 40 countries.
Importers of Welded Iron & Steel Tubing with Noncircular Cross-Section paid $29.2M in duties in September 2026, an average duty rate of 49.33% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Welded Iron & Steel Tubing with Noncircular Cross-Section imports of $59.2M in September 2026 ran 10% above the year-to-date monthly average of $53.6M.
Last updated: September 2026 dataWelded iron and steel tubes and pipes with noncircular cross-sections — square, rectangular, oval, or other profiles — occupy a distinct classification niche separate from round structural tubing. Imports of these profiles are subject to Section 232 tariffs, making origin and product specification critical variables in landed-cost calculations. Fabricators serving construction, automotive, and industrial equipment sectors rely on these shapes for structural frames and enclosures where round tube geometry is impractical.
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4.7K import shipments a month
The noncircular designation specifically excludes round-profile welded pipe, which falls under separate SITC headings. Square, rectangular, oval, and other non-round welded profiles classify here, and the distinction matters because misclassification between round and noncircular can affect applicable duty rates and Section 232 exposure.
Yes. Welded iron and steel tubular products, including noncircular profiles, are broadly subject to Section 232 tariffs on steel imports. Antidumping and countervailing duty orders may also apply depending on the specific product specification and country of origin, so importers should verify current orders with CBP before entry.
Basic heading 89 of 766 in section 6
Basic heading 67944 · $59.2M of $27.0B
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Imports · September 2026
origin
Canada and Mexico together supply 73% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$59.2MYoY · free account
Exports
$13.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to September 2026, the U.S. imported $590.2M of Welded Iron & Steel Tubing with Noncircular Cross-Section and exported $140.2M.
Through September 2026. Source: U.S. Census Bureau.