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VOL. I · WASHINGTON TARIFF DECISION ASSISTANT · April 26, 2026
§ HTS 7304.29.31.60 · US import duty

Having a wall thickness of 12.7 mm or more

HTS 7304.29.31.60 covers Having a wall thickness of 12.7 mm or more, classified under HS chapter 73. The MFN (general column) base duty is Free. 2 active Chapter 99 overlays apply: 9903.90.09 (other +0%); 9903.91.01 (other +25%). Imports from China typically incur the Section 301 / IEEPA additional duties listed above; imports from Vietnam, Mexico, India and other origins generally pay only the MFN base unless an origin-specific overlay applies. Antidumping (AD) and countervailing duty (CVD) cases are NOT evaluated on this page — check ADCVD orders separately. Source: USITC HTS release 2026HTSRev6. CBP determines the binding classification and duty at entry.

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: · Other: · Threaded or coupled · Having a wall thickness of 12.7 mm or more
HTS CODE
7304.29.31.60
General (MFN)Free
Other (Column 2)28%
§99 overlays2

Base tariff columnsBase tariff columns

Column rates from the USITC HTS export. The column that applies depends on origin and trade-program eligibility.

General (MFN)Free
Special
Other (Column 2)28%
Unitskg

Official source: USITC Harmonized Tariff Schedule. Duty at entry is determined by US Customs and Border Protection (CBP). AD/CVD and product-specific exclusions are not evaluated by default.

Chapter 99 overlaysChapter 99 overlays

  • 9903.90.09 other +0% active
    Articles the product of the Russian Federation, as provided for in U.S. note 30(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(d) to this subchapter
  • 9903.91.01 other +25% active
    Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter

§ DUTY BREAKDOWNDuty breakdown

Duty ledger below is calculated on a $10,000 customs value. Fees, AD/CVD, and exclusions are not included here.

China (CN)
Total 25% · $2,500.00
Duty breakdown Rate Amount Source
Base dutyBase 0% $0.00 HTS General rate
Chapter 99 otherChapter 99 0% $0.00 9903.90.09
Chapter 99 otherChapter 99 25% $2,500.00 9903.91.012024-09-26
Status: exact Methodology: tariff-ledger-v1 Data: d4c9e6f79bac8e84

§ ORIGIN COMPARISONAlternative origin comparison

This compares tariff-only outcomes for the same HTS across origin countries. Freight, AD/CVD, exclusions, broker fees, and relocation cost are not included.

China → Vietnam
$2,500.00 tariff-only saving
Origin Total rate Duty @ $10,000 Delta vs baseline
China (CN) 25% $2,500.00
Vietnam (VN) 0% $0.00 -$2,500.00
Mexico (MX) 0% $0.00 -$2,500.00
India (IN) 0% $0.00 -$2,500.00
South Korea (KR) 0% $0.00 -$2,500.00

Sample duty by originSample duty by origin

Illustrative calculation at USD 10,000 customs value, standard (non-preferential) claim. Chapter 99 additional duties applied where status is active.

Origin Base rate Chapter 99 Total rate Duty (USD)
China (CN) 0% 25% 25% $2,500.00
Vietnam (VN) 0% 0% 0% $0.00
Mexico (MX) 0% 0% 0% $0.00
India (IN) 0% 0% 0% $0.00
South Korea (KR) 0% 0% 0% $0.00

§ RELATED ENTRIESRelated HS codes in the same chapter

Adjacent lines under the same HTS chapter. Pick the most specific match for your product.

§ FAQFrequently asked questions

What is the US import duty for HTS 7304.29.31.60?
HTS 7304.29.31.60 (Having a wall thickness of 12.7 mm or more) has a general (MFN) column rate of Free, plus 2 active Chapter 99 overlay(s) that may apply depending on origin (for example, Section 301 or IEEPA actions). Final duty is determined by CBP at entry.
Which Chapter 99 rules are currently linked to HTS 7304.29.31.60?
The following rules are attached in our snapshot: 9903.90.09 (other), 9903.91.01 (other) — other. Each rule has its own country scope and effective dates — check the rule detail on this page for the additional rate and status before applying it to your shipment.
Are Section 232 steel tariffs applicable to HTS 7304.29.31.60?
Most Chapters 72–73 iron and steel lines carry the Section 232 national-security tariff (typically 25%). Country-specific quotas, TRQs, and melt-and-pour origin requirements apply. Check the 9903.81.xx / 9903.80.xx headings for the current rate and exclusion status.
Why is HTS 7304.29.31.60 a 10-digit statistical suffix?
The 10-digit format is used for CBP entry reporting to track quantity / form; actual column rates are typically set at the 6- or 8-digit parent subheading, and this page inherits those rates. Use the Chapter breadcrumb above to see sibling tariff lines within the same chapter. This page is marked noindex because the duty-relevant signal lives at the parent level.
Is this the binding duty determination?
No. This page is a reference built on USITC + Federal Register open data. The binding classification and duty amount is determined by CBP at entry. AD/CVD and product-specific exclusions require separate review.