Tandom · Duty calculator
HTS 7305.31.40.00 is the U.S. Harmonized Tariff Schedule classification for Of iron or nonalloy steel. 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. 16 Chapter 99 tariff modifications currently stack on top of the base rate, and 21 active AD/CVD orders flag this code.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.80.01 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.80.23 | section_232 | Free |
| 9903.80.35 | section_232 | Free |
| 9903.80.61 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.80.83 | section_232 | Free |
| 9903.80.95 | section_232 | Free |
| 9903.81.43 | section_232 | Free |
| 9903.81.55 | section_232 | Free |
| 9903.81.83 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.81.85 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.81.87 | section_232 | The duty provided in the applicable subheading + 50%. |
| 9903.81.88 | section_232 | The duty provided in the applicable subheading + 50%. |
| 9903.81.94 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.81.95 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.82.02 | section_232 | 50% |
| 9903.91.01 | section_301 | The duty provided in the applicable subheading + 25% |
Active orders that may apply to imports under this HTS code. HTS coverage is advisory — actual scope depends on each order's product description. Run the AD/CVD lookup → to check whether your specific shipment is in scope.
Oil Country Tubular Goods
Welded Pipe
Oil Country Tubular Goods
Oil Country Tubular Goods
Oil Country Tubular Goods
Large Diameter Welded Pipe
Certain Oil Country Tubular Goods from Korea
Large Diameter Welded Pipe
Oil Country Tubular Goods
Oil Country Tubular Goods
Oil Country Tubular Goods
Oil Country Tubular Goods
Large Diameter Welded Pipe
Oil Country Tubular Goods
Countervailing Duty Investigation of Large Diameter Welded Pipe
Oil Country Tubular Goods
Large Diameter Welded Pipe
Oil Country Tubular Goods
Large Diameter Welded Pipe
Large Diameter Welded Pipe
Oil Country Tubular Goods
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification and country of origin of bulkhead assemblies
The tariff classification of slurry pipes from the United Arab Emirates
The tariff classification of steel pipes from Germany.
The tariff classification of steel pipe from Mexico.
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 7305.31.40.00 is the U.S. Harmonized Tariff Schedule classification for Of iron or nonalloy steel. It belongs to Chapter 73 of the HTSUS.
The general (Column 1) duty rate for HTS 7305.31.40.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 7305.31.40.00 is 5.5%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 7305.31.40.00 is covered by section_232 provision 9903.80.01 (The duty provided in the applicable subheading + 25%). 15 additional overlays also touch this code. Open the code page for the full overlay stack with effective dates and country scopes.
Yes — 21 AD/CVD orders flag this code: A-552-817 (AD, Vietnam), A-570-077 (AD, China), A-823-815 (AD, Ukraine) plus 18 more. Open the code page for deposit rates, scope determinations, and the linked case lookups.
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.
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).
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