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Tandom · Duty calculator
Add country, entered value, and entry date to estimate the base rate, potentially applicable Chapter 99 duties, and customs fees. AD/CVD scope requires a separate review.
HTS 7306.30.10.90 is the U.S. Harmonized Tariff Schedule classification for Having a wall thickness of less than 1.65 mm, other. It's a 10-digit statistical line in Chapter 73: Articles of iron or steel, Section XV: Base Metals and Articles of Base Metal, used by U.S. Customs and Border Protection to determine the duty rate at entry. 21 Chapter 99 flags link to this code (4 active, 17 expired). A Chapter 99 flag is not a shipment-level determination; origin, product facts, claims, and entry date control whether a provision applies.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 flags linked to this code; applicability depends on origin, product facts, claims, and entry date
| Code | Authority | Rate |
|---|---|---|
| 9903.80.01 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.80.22 | section_232Expired | Free |
| 9903.80.24 | section_232Expired | Free |
| 9903.80.25 | section_232Expired | Free |
| 9903.80.61 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.80.82 | section_232Expired | Free |
| 9903.80.84 | section_232Expired | Free |
| 9903.80.85 | section_232Expired | Free |
| 9903.81.42 | section_232Expired | Free |
| 9903.81.44 | section_232Expired | Free |
| 9903.81.45 | section_232Expired | Free |
| 9903.81.83 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.85 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.87 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.81.88 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.81.94 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.95 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.82.02 | section_232Active | 50% |
| 9903.82.04 | section_232Active | 25% |
| 9903.82.18 | section_232Active | no change |
| 9903.91.01 | section_301Active | The duty provided in the applicable subheading + 25% |
HTS 7306.30.10.90 is the U.S. Harmonized Tariff Schedule classification for Having a wall thickness of less than 1.65 mm, other. It belongs to Chapter 73 of the HTSUS.
The general (Column 1) duty rate for HTS 7306.30.10.90 is . This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
Tandom links section_232 provision 9903.80.01 to HTS 7306.30.10.90. Its published rate notation is The duty provided in the applicable subheading + 25%, and its status on 2026-09-25 is expired. 20 additional Chapter 99 flags also link to this code. A flag is not a shipment-level determination; check origin, product facts, claims, and entry date.
Tandom's current catalog view links no potentially relevant AD/CVD order flags to HTS 7306.30.10.90. Check current Commerce scope materials and Federal Register notices before relying on an HTS-only screen.
Section and chapter notes that govern this code
Throughout this schedule, the expression 'base metals' means: iron and steel, copper, nickel, aluminum, lead, zinc, tin, tungsten (wolfram), molybdenum, tantalum, magnesium, cobalt, bismuth, cadmium, titanium, zirconium, antimony, manganese, beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium (columbium), rhenium, and thallium.
Classification of alloys: (a) Alloys of base metals with each other are to be classified as alloys of the metal which predominates by weight over each of the other metals; (b) Alloys of base metals of this section with elements not falling within this section are to be classified as alloys of base metals of this section if the total weight of such metals equals or exceeds the total weight of the other elements present; (c) Sintered mixtures of metal powders, heterogeneous intimate mixtures obtained by melting (other than cermets), and intermetallic compounds are classified as alloys.
(a) 'Iron and nonalloy steel' covers iron and steel containing by weight 2% or less of carbon and, except for certain specific steels, less than designated percentages of chromium, manganese, nickel, and other alloy elements. (b) 'Stainless steel' covers alloy steels containing by weight 1.2% or less of carbon and 10.5% or more of chromium, with or without other elements. (c) 'Other alloy steel' covers steels not meeting the definition of stainless steel containing specific minimum percentages of alloy elements.
In this chapter, the word 'welded' encompasses products obtained by any process of welding, including electric resistance welding, whether or not subsequently cold-drawn or cold-rolled (cold-reduced).
Tandom guides relevant to this code
Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
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Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
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How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
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What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
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How to subscribe to CBP Cargo Systems Messaging Service and triage the messages that change broker filing behavior, without losing the ones that matter.
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