HTS heading 7306 · Chapter 73, Articles of iron or steel
US imports of other tubes, pipes and hollow profiles, of iron or steel
$1.34 billion of imports for consumption entered the US under HTS 7306 in March–July 2026 from 44 origin countries, 25.9% of it from South Korea; Census calculated duty came to $44.94 per $100 of value.
Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
US imports under HTS 7306 at a glance
During March–July 2026, the sample records $1.34 billion of imports for consumption under HTS heading 7306: Other tubes, pipes and hollow profiles, of iron or steel. This heading has trade from 44 of the 55 origin countries covered by the extract, across 67 ten-digit tariff lines. It is not a total for all U.S. origins.
Heading 7306 belongs to chapter 73, Articles of iron or steel. The heading groups products for analysis; it does not establish a common duty rate for every product in the chapter.
Where HTS 7306 imports come from
Import value and calculated duty by origin country
| Origin | Import value | Share | Dutiable share | Effective duty | Duty per $100 | Detail |
|---|---|---|---|---|---|---|
| South Korea | $347 million | 25.9% | 99.9% | 47.62% | $47.57 | |
| Canada | $322 million | 24.1% | 75.7% | 49.29% | $37.30 | |
| Mexico | $162 million | 12.1% | 95.5% | 47.49% | $45.38 | |
| Taiwan | $116 million | 8.7% | 100% | 49.85% | $49.85 | |
| Vietnam | $75.9 million | 5.7% | 98.8% | 45.93% | $45.39 | Duty on 7306.30.50 Shipping from Vietnam |
| India | $73.9 million | 5.5% | 100% | 48.77% | $48.77 | Duty on 7306.40.50 Shipping from India |
| United Arab Emirates | $49.2 million | 3.7% | 100% | 43.41% | $43.41 | |
| Turkey | $42.1 million | 3.1% | 99.7% | 44.96% | $44.81 | |
| China | $24.9 million | 1.9% | 99.6% | 73.39% | $73.07 | Shipping from China |
| Germany | $22.6 million | 1.7% | 96.7% | 48.67% | $47.07 | |
| Thailand | $20.7 million | 1.6% | 99.7% | 45.47% | $45.31 | Duty on 7306.30.50 Shipping from Thailand |
| Italy | $13.4 million | 1% | 99.9% | 48.92% | $48.87 | Shipping from Italy |
| Finland | $12.6 million | 0.9% | 100% | 48.43% | $48.43 | |
| Japan | $12.0 million | 0.9% | 99.6% | 49.05% | $48.85 | |
| United Kingdom | $9.3 million | 0.7% | 100% | 30.37% | $30.37 |
Origin countries for HTS 7306
The largest displayed origins by import value are South Korea: $347 million (25.9%), Canada: $322 million (24.1%), and Mexico: $162 million (12.1%). Shares use the heading's total import value within this sample as their denominator.
Origin shares describe the trade observed during this period. They do not establish supplier availability, product substitutability, transport mode or eligibility for a trade preference. Those questions require product and shipment details.
Calculated duty and its two denominators
For this heading in the 55-origin sample, Census reports $601 million of calculated duty against $1.34 billion of imports for consumption during March–July 2026. Dutiable value is 93.4% of that import value. Calculated duty divided by dutiable value gives 48.1%; divided by all import value and multiplied by 100, it gives $44.94 per $100.
These are value-weighted ratios of aggregate amounts, not averages across individual importers or shipment bills. Census calculated duty may differ from amounts actually paid. The share outside the dutiable base does not identify which preference or other provision applied.
Among the displayed origins with at least 2% of this heading's sample import value, calculated duty per $100 ranges from $37.30 (Canada) to $49.85 (Taiwan). Each origin has its own mix of products and entry circumstances. This comparison does not hold those factors constant and cannot predict savings from switching the origin of a purchase order.
The 10-digit tariff lines inside HTS 7306
| HTS code | Description | Import value | Share | Duty per $100 | Largest origin |
|---|---|---|---|---|---|
| 7306.29.20.00 | — | $202 million | 15.1% | $47.34 | South Korea |
| 7306.61.10.00 | — | $151 million | 11.3% | $50.02 | Canada |
| 7306.19.10.50 | With an outside diameter exceeding 114.3 mm | $107 million | 8% | $48.53 | South Korea |
| 7306.30.50.90 | Other | $78.6 million | 5.9% | $49.31 | South Korea |
| 7306.29.10.30 | Imported with coupling | $71.0 million | 5.3% | $0.10 | Canada |
| 7306.61.50.00 | — | $68.1 million | 5.1% | $48.43 | Mexico |
| 7306.29.60.50 | — | $63.7 million | 4.8% | $49.01 | South Korea |
| 7306.40.50.85 | — | $38.4 million | 2.9% | $47.62 | South Korea |
| 7306.30.50.15 | Other, cold-drawn | $34.4 million | 2.6% | $46.08 | India |
| 7306.40.50.40 | — | $34.4 million | 2.6% | $41.13 | India |
| 7306.30.50.57 | Other | $34.2 million | 2.6% | $49.27 | Canada |
| 7306.30.10.90 | — | $30.6 million | 2.3% | $47.20 | Mexico |
Census calculated duty is an estimate and can differ from the duty actually paid. See the Census definitions of calculated duty and dutiable value.
Wording reviewed September 18, 2026: Title, description and the line under the heading now state the sample's import value, top origin and calculated-duty ratio.
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
The 10-digit lines under heading 7306
67 ten-digit lines recorded imports in this heading during the stated period. The largest displayed lines are 7306.29.20.00 (15.1% of heading value), 7306.61.10.00 (11.3% of heading value), 7306.19.10.50 (8% of heading value), and 7306.30.50.90 (5.9% of heading value). The table shows each line's aggregate value and calculated-duty ratios. A line's origin mix can differ from that of the heading.
From historical data to a shipment estimate
The $44.94 per $100 figure describes the historical sample. It does not identify the provisions applicable to a future entry. A shipment estimate needs the precise product classification, origin, entry date and applicable circumstances, followed by review of the underlying requirements.
Explore the related code-and-origin pages: Vietnam (7306.30.50), India (7306.40.50), and Thailand (7306.30.50). Use your own 10-digit code and origin in the tariff simulator for a separate estimate.
Prepare your shipment information
Keep the product specification, proposed classification, origin, cargo dimensions and timing together when discussing a shipment. Airlift USA arranges freight and coordinates classification and entry filing through its licensed broker network.
For relevant cargo preparation and route information, see the Steel Logistics guide, the Vietnam to USA lane, and the heading index.
Price a shipment under HTS 7306
The figures above are historical. For your own shipment, estimate the duty with your 10-digit code and origin in the import duty calculator, or ask us for the freight side. Not sure which 10-digit line under 7306 is yours? Search the heading in the HTS code lookup.
Airlift USA has moved ocean and air freight into the United States since 1999 and coordinates HTS classification, ISF and entry filing through our licensed broker network.
Get a quote to ship other tubes, pipes and hollow profiles, of iron or steel
HTS heading 7306 is already in your notes. Add the product, origin country, cargo and container or weight; we reply with the freight rate, the destination charges and how the customs entry is handled through our licensed broker network.
Methodology
Source and scope. Figures come from the U.S. Census Bureau's international trade statistics for imports for consumption: the customs value of goods entered into US commerce, not shipments in transit or goods held in bonded warehouses. The period is March–July 2026 (5 months of data). Coverage is limited to 55 major origin countries, so totals here are lower than published US-wide totals for the same heading.
How the rates are built. Three quantities can be added up, and everything else is derived from them: entered customs value, dutiable value and calculated duty. Effective duty divides calculated duty by dutiable value. Dutiable share divides dutiable value by entered value. Duty per $100 divides calculated duty by all entered value and multiplies by 100.
What they can't tell you. These are value-weighted sample ratios, not importer averages. Each origin has its own product mix, so its aggregate ratio cannot predict savings on an identical product sourced elsewhere. Values are historical and reflect duty as calculated at the time of entry; they are not a quote and not a prediction of the rate on a future shipment.
Chapters 98 and 99 are excluded: they hold special classification and temporary-measure provisions, not product headings. Heading and tariff-line descriptions are the current HTS text.
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value. Census data is a work of the US government and is in the public domain.
Terms on this page:Harmonized Tariff Schedule (HTS)Importer Security Filing (ISF)Bonded Warehouse
Frequently asked questions
Which origins supply the most imports under HTS 7306?
South Korea (25.9%), Canada (24.1%), and Mexico (12.1%) lead the displayed origins by value. These shares describe the 55-origin sample during March–July 2026, not all U.S. trade.
What calculated duty does Census report for HTS 7306?
Calculated duty is 48.1% of dutiable value and $44.94 per $100 of total sample import value; neither ratio predicts a shipment's charge or confirms duty paid.
Which HTS codes appear under heading 7306?
The extract records 67 ten-digit lines under this heading. The largest displayed lines by value are 7306.29.20.00, 7306.61.10.00, 7306.19.10.50, and 7306.30.50.90. Confirm the classification against the actual goods; a heading-level aggregate is not a classification opinion.
Can I use origin averages to calculate sourcing savings?
Among the displayed origins with at least 2% of this heading's sample import value, calculated duty per $100 ranges from $37.30 (Canada) to $49.85 (Taiwan). Each origin has its own mix of products and entry circumstances. This comparison does not hold those factors constant and cannot predict savings from switching the origin of a purchase order.
How do I estimate duty for my own shipment?
Use the tariff simulator with the specific 10-digit HTS code and origin, then confirm applicable provisions for the entry. The historical Census ratios on this page cannot replace that review.