Harmonized System
U.S. imports of Seamless Stainless Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled (HS 730449) totaled $9.0M in August 2026, imported from 29 countries.
Importers of Seamless Stainless Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled paid $4.2M in duties in August 2026, an average duty rate of 46.94% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Seamless Stainless Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled imports of $9.0M in August 2026 ran 18% above the year-to-date monthly average of $7.6M.
Last updated: August 2026 dataHot-finished seamless stainless steel tubes — produced without a final cold-reduction pass — are widely used in heat exchangers, petrochemical reactors, and power-generation equipment where large diameters or heavy wall sections make cold-working impractical. Japan and France are the leading suppliers under this heading, reflecting the concentration of specialty stainless melting and tube-rolling capacity in those countries. The US schedule separates hollow bars (7304490010 and 7304490015) from tubes and pipes, and further distinguishes boiler-service tubes (7304490045) from general-purpose tubes (7304490060), with high-nickel grades enumerated separately at 7304490005. Section 232 tariffs apply, and importers should verify whether active antidumping orders on stainless steel pipe from specific origins cover the grade and dimensions being imported.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
260 import shipments a month
Hollow bars of stainless steel with a circular cross-section that are seamless and not cold-worked fall under 7304490010 or 7304490015 within heading 730449. The key classification boundary is whether the product is a hollow bar (solid-wall stock intended for machining) versus a tube or pipe (intended to convey fluids or gases). CBP has issued binding rulings on this distinction; importers with ambiguous products should seek a ruling before entry.
Both countries host integrated specialty steel producers with electric arc furnace and vacuum-degassing capacity suited to high-alloy stainless grades, combined with large-diameter seamless rolling mills. These capital-intensive assets are concentrated in relatively few global locations, which is why European and Japanese mills remain primary sources for heavy-wall and large-diameter stainless tube even as lower-grade stainless production has shifted to Asia.
Trade Directory
List your company under HS 730449 — Seamless Stainless Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled, so the companies trading it can find you. Be the first supplier listed.
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 |
|---|---|---|---|---|---|
| 7304490060 | Tubes Pipes Etc Ss Circ Cs Nt Hlw Brs Nt Fr Boilrs | $7.9M | 46.56% | 91.58% | $3.7M |
| 7304490015 | Hollow Brs Ss Smls Circ Cs not Cold-Drawn, NESOI | $781K | 49.87% | 100.00% | $390K |
| 7304490005 | Tubes Pipes Etc Smls Circ Cs Hi-Ni Ss not Cold-Rld | $172K | 49.22% | 100.00% | $85K |
| 7304490045 | Tubes Pipes Etc Ss Circ Cs Nt Hlw Bars for Boilers | $150K | 48.64% | 100.00% | $73K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7304490040 | Oth Ss Tb Ps Hp Smls Circ Cs Nt Cold-Wrkd Nt Hlw B | $2.1M |
| 7304490010 | Hollow Bars, Stnls Stl, Smls, Circ Cs Nes Nt C-Rld | $391K |
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.
Subheading 5 of 13 in heading 7304
Subheading 730449 · $9.0M of $182.5M
ImportsExports
Imports
$9.0MYoY · free account
Exports
$2.5MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $106.2M of Seamless Stainless Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled and exported $30.4M.
Imports · August 2026
origin
France and Ukraine together supply 40% of it. France pays 50.0% duty; China 26.0%.
Through August 2026. Source: U.S. Census Bureau.
customs district
entry
rate provision · imports
7.3% enters free of duty; duty collected equals 46.94% of imports for consumption.