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HSChapter 73
U.S. imports of riveted or similarly closed iron or steel pipes & tubes (HS 730690) totaled $3.1M in July 2026, traded with 30 countries.
Importers of Riveted or Similarly Closed Iron or Steel Pipes & Tubes paid $1.6M in duties in July 2026 — an effective duty rate of 53% on $3.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataMechanical closure methods — riveting, lock-seaming, or similar techniques — define this residual pipe and tube heading, distinguishing it from the welded and seamless categories that dominate steel tubular trade. The two US tariff lines split by alloy content: 7306901000 for iron or non-alloy steel and 7306905000 for alloy steel. These products appear in legacy infrastructure, drainage, and certain industrial conveying applications where welded seams are not required. Canada and Mexico are the leading suppliers, and Section 232 tariffs apply to steel imports across the board.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
382 shipments/mo
CBP interprets 'similarly closed' to mean mechanical joining methods functionally analogous to riveting — such as lock-seaming or crimping — that create a longitudinal seam without fusion welding. Pipes joined by brazing, soldering, or adhesive bonding may fall outside this heading; a binding ruling is recommended when the closure method is non-standard.
Riveted and lock-seam steel pipe is most common in large-diameter drainage culverts, corrugated metal pipe, and certain ventilation duct applications where the mechanical seam provides adequate strength at lower cost than welding. For pressure-bearing or high-temperature service, welded or seamless alternatives are typically specified instead.
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 |
|---|---|---|---|---|---|
| 7306905000 | Oth Tubes Etc, NESOI, Of Alloy Steel | $1.8M | 50.94% | 95.56% | $917K |
| 7306901000 | Oth Tubes Etc, NESOI, Of Iron or Nonalloy Steel | $1.3M | 52.61% | 100.00% | $677K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7306905000 | Oth Tubes Etc, NESOI, Of Alloy Steel | $1.7M |
| 7306901000 | Oth Tubes Etc, NESOI, Of Iron or Nonalloy Steel | $1.1M |
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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ImportsExports
Imports
$3.1MYoY · Pro
Exports
$2.8MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Canada and Mexico together supply 63% of it.
customs district
destination
entry
rate provision · imports
1.1% enters free of duty; the effective duty rate is 51.63%.