Harmonized System
U.S. imports of Seamless Alloy Steel (Non-Stainless) Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled (HS 730451) totaled $3.5M in August 2026, imported from 21 countries.
Importers of Seamless Alloy Steel (Non-Stainless) Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled paid $1.8M in duties in August 2026, an average duty rate of 52.38% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Seamless Alloy Steel (Non-Stainless) Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled imports of $3.5M in August 2026 ran 23% above the year-to-date monthly average of $2.8M.
Last updated: August 2026 dataCold-drawn and cold-rolled seamless tubes of alloy steel other than stainless are critical inputs for bearing races, precision hydraulic cylinders, and high-temperature boiler circuits, where alloying elements such as chromium, molybdenum, and vanadium provide elevated strength and creep resistance. Germany leads supply under this heading, reflecting that country's deep integration with European automotive and industrial machinery supply chains that demand tight-tolerance alloy tube. The US schedule carves out bearing-quality tube (7304511000), high-nickel alloy grades (7304515005), heat-resistant steel boiler tubes (7304515015), and other boiler-service tubes (7304515045) from the general NESOI line (7304515060). All entries are subject to Section 232 tariffs, and importers of chromium-molybdenum grades should confirm whether any antidumping orders on alloy pipe from China or other origins apply.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
140 import shipments a month
Bearing-quality tube is produced to tighter chemical composition, cleanliness, and dimensional tolerances — typically per standards such as ASTM A295 or equivalent — specifically for manufacture of anti-friction bearing rings. CBP expects importers to document the intended use and applicable material standard; a general-purpose alloy tube that happens to be the right size does not automatically qualify for the bearing-quality subheading.
Each line item must be classified separately based on the steel's composition and the applicable HTS subheading. Heat-resistant steel grades (7304515015) are defined by specific alloy content thresholds in the HTS schedule notes. Mixed shipments should be accompanied by mill test reports for each coil or bundle so that CBP can verify the correct subheading at entry; commingling without segregated documentation is a common audit trigger.
Subheading 11 of 13 in heading 7304
Subheading 730451 · $3.5M of $182.5M
Trade Directory
List your company under HS 730451 — Seamless Alloy Steel (Non-Stainless) Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled, so the companies trading it can find you. Be the first supplier listed.
ImportsExports
Imports
$3.5MYoY · free account
Exports
$2.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $34.7M of Seamless Alloy Steel (Non-Stainless) Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled and exported $25.3M.
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 |
|---|---|---|---|---|---|
| 7304515060 | Tubes Etc Smls Circ Aly Stl Nt Ss Cr Nt Fr Blrs Et | $2.6M | 50.37% | 99.43% | $1.3M |
| 7304515015 | Tubes Etc Smls Circ Cs Heat Resis St Nes Cr Fr Blr | $512K | 64.47% | 90.37% | $330K |
| 7304515045 | Tubes Etc Smls Circ Cs Cr Fr Boilrs Nt Ht Resis St | $164K | 58.12% | 93.88% | $95K |
| 7304511000 | Tubes Etc Smls Circ Aly Nt Stnl C-R Fr Bal Bearngs | $76K | 26.79% | 92.45% | $20K |
| 7304515005 | Tubes Etc Smls Circ Cs Hi-Ni Aly Stl Nes Cld-Rolld | $2K | 60.02% | 100.00% | $1K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7304510000 | Oth Tb Ps Hlw Pfl Aly Stl Nt Ss Smls Circ Cs Cd-Wk | $2.2M |
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.
Imports · August 2026
origin
Germany and China together supply 73% of it. China pays 75.1% duty; Romania 49.0%.
customs district
destination
entry
rate provision · imports
2.1% enters free of duty; duty collected equals 52.38% of imports for consumption.