HS Code 7305.31 : Other, welded, Longitudinally welded
MODULE 2: EXTRACTABLE ANSWER (AEO / SPEAKABLE)
Tariff data verified: July 2026
EN (Official WCO)
FR (Pending)
ES (Pending)
The 6-digit Harmonized System (HS) code for other, welded, longitudinally welded is 7305.31. Under the 2026 United States (USITC HTS), the representative MFN general duty rate is Free [USITC HTS Tariff Schedule 2026].
MODULE 3: SIGNATURE A: HS DECODE VISUAL HIERARCHY
Chapter 73
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm , of iron or steel
Heading 7305
Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm , of iron or steel
Subheading .31
.31
Other, welded, Longitudinally welded
MODULE 4: SIGNATURE B: TARIFF MATRIX
Import Duty Rates by Destination
United StatesUnited KingdomEuropean UnionCanadaMexicoChinaJapanIndiaAustraliaSouth KoreaGermanyNetherlandsBrazilTürkiyeChinese TaipeiVietnamThailandIndonesiaMalaysiaSingaporeSaudi ArabiaUnited Arab EmiratesSouth AfricaEgyptIsraelChileColombiaPeruPhilippinesPakistanNew ZealandNorwayNigeriaKenyaMoroccoArgentinaEcuadorBangladeshUkraineKazakhstanQatarKuwaitOmanJordanBahrainSri LankaTunisiaGhanaCôte d'IvoireGeorgiaCambodiaPanamaCosta RicaDominican Republic
United States (USITC HTS 2026)
7305.31
MODULE 5: US IMPORT DUTY & FEE BREAKDOWN (LANDED COST STACK)
Federal Import VAT / GST
0.00%
US Has NO Federal VAT
Notice: Duty rates and trade remedies change frequently (Section 301, Section 232, anti-dumping orders, de minimis thresholds). Duty calculations are estimates for informational purposes only. Always verify exact rates with U.S. Customs and Border Protection (CBP) or a licensed customs broker prior to import.
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MODULE 6: Mandatory Customs Entry Document Matrix
Rule-Derived Customs Entry Package Checklist
UNIVERSAL DOCUMENT
Commercial Invoice
Itemized description, currency, Incoterms, seller/buyer details, and country of origin.
UNIVERSAL DOCUMENT
Packing List & Bill of Lading
Gross/net weight, container/seal numbers, piece count, and transport B/L or Air Waybill.
PREFERENTIAL RULE
Certificate of Origin (If Claiming FTA)
Required only when claiming zero-duty preference under USMCA, KORUS, or GSP.
MODULE 7: Regulatory Compliance & Partner Government Agency (PGA) Flags
Standard Entry
This commodity does not carry mandatory PGA pre-clearance flags under the ACE message set.
MODULE 8: Trade Remedies (Section 301, Section 232, AD/CVD)
China Section 301 Tariff Status
0% Additional Duty (Exempt)
Section 232 Steel/Aluminum Status
25% Additional Duty (Proclamation 9704)
EU CBAM Carbon Alert
EU CBAM Covered Sector
MODULE 9: Free Trade Agreements (FTA) & Rules of Origin (RoO)
Browse all preferential trade calculators & compliance tools in our Customs Tools Hub ↗.
| Agreement Code | Trade Agreement / Program | Preferential Rate | Rules of Origin (RoO) Requirement |
|---|---|---|---|
| P | United States-Mexico-Canada Agreement (USMCA) | Free | Must meet USMCA Regional Value Content (RVC) or tariff shift rules. |
| KR | U.S.-Korea Free Trade Agreement (KORUS) | Free | Direct shipment from South Korea with KORUS Certificate of Origin. |
| AU | U.S.-Australia Free Trade Agreement | Free | Wholly obtained or tariff shift rule under US-Australia FTA. |
| A / D | GSP / African Growth & Opportunity Act (AGOA) | Free | 35% local value-add requirement for beneficiary country origin. |
MODULE 10: Logistics, Freight & Transport Specifications
Standard 20ft Container
~28 CBM / 28,000 kg Payload
Standard 40ft High-Cube
~68 CBM / 28,600 kg Payload
Stowage Factor & Handling
Standard commercial packaging for Other, welded, Longitudinally welded
MODULE 11: Official CBP CROSS Binding Classification Rulings
No official CBP CROSS classification precedents indexed for subheading 730531 yet.
US National HTS Tariff Lines (7305.31)
| HTS Code | Description | General Rate | Special (FTA) Rate | Column 2 Rate | Unit |
|---|---|---|---|---|---|
| 7305.31 | Other, welded, Longitudinally welded | Free | Free | Rate on request | — |
| 7305.31.20.00 | Other, welded, Longitudinally welded, Tapered pipes and tubes of steel principally used as parts of illuminating articles | Free | Free | 45% | kg |
| 7305.31.40.00 | Other, welded, Longitudinally welded, Other, Of iron or nonalloy steel | Free | Free | 5.5% | kg |
| 7305.31.60 | Other, welded, Longitudinally welded, Other, Of alloy steel | Free | Free | 10% | — |
| 7305.31.60.10 | Other, welded, Longitudinally welded, Other, Of alloy steel, Of stainless steel | Free | Free | Rate on request | kg |
| 7305.31.60.90 | Other, welded, Longitudinally welded, Other, Of alloy steel, Other | Free | Free | Rate on request | kg |
⚠️ U.S. AD/CVD Trade-Remedy Alert
10 Active Orders
HS 7305.31 appears in the scope of 10 active U.S. Antidumping/Countervailing Duty order(s) — covering Large Diameter Welded Pipe, Large Diameter Welded Carbon and Alloy Steel Line and Structural Pipe, Large Diameter Welded Carbon and Alloy Steel Line Pipe from Canada, China, Greece, India, South Korea and 1 more (Commerce case(s) A-122-863, A-570-077, C-570-078, A-484-803, C-533-882, A-533-881 (+4 more)). Scope is defined by written product description, and duty rates are exporter-specific.
A-122-863 (Canada - Large Diameter Welded Pipe)A-570-077 (China - Large Diameter Welded Carbon and Alloy Steel Line and Structural Pipe)C-570-078 (China - Large Diameter Welded Pipe)A-484-803 (Greece - Large Diameter Welded Pipe)C-533-882 (India - Large Diameter Welded Carbon and Alloy Steel Line Pipe)A-533-881 (India - Large Diameter Welded Pipe)A-580-897 (South Korea - Large Diameter Welded Pipe)C-580-898 (South Korea - Large Diameter Welded Pipe)
+2 more orders...
Explore all 724 covered orders in the U.S. AD/CVD Trade Remedies Directory ↗. Verify exact scope at access.trade.gov and view the Active AD/CVD Directory. Not legal advice. Per-code scope flags cover the 437 highest-volume HS6 subheadings (724 of 778 active orders; 93% coverage); coverage expanding.
US 10-Digit Statistical HTS Breakout (7305.31)
4 Declarable Lines · USITC 2026
⚠️ Section 301 (China) Additional Tariff Alert
Heading 9903.91.01
If imported from China, merchandise under this HTS line carries an additional Section 301 tariff (see HTS heading 9903.91.01). Applicable Section 301 rates depend on country of origin — verify exact rate and exemptions at hts.usitc.gov.
| 10-Digit HTS Code | Statistical Description | General MFN Rate | FTA / Special Rate | Unit |
|---|---|---|---|---|
| 7305.31.20.00 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: Other, welded: Longitudinally welded: Tapered pipes and tubes of steel principally used as parts of illuminating articles | Free | Base MFN | kg |
| 7305.31.40.00 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: Other, welded: Longitudinally welded: Other: Of iron or nonalloy steel | Free | Base MFN | kg |
| 7305.31.60.10 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: Other, welded: Longitudinally welded: Other: Of alloy steel Of stainless steel | Free | Base MFN | kg |
| 7305.31.60.90 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: Other, welded: Longitudinally welded: Other: Of alloy steel Other | Free | Base MFN | kg |
MODULE 12: Candidate Subheadings & Related Codes
| Related HS Code | Heading Category | Action |
|---|---|---|
| 7305.11 | Subheading under Heading 7305 | HS 7305.11 undefined Duty & Entry Rules → |
| 7305.12 | Subheading under Heading 7305 | HS 7305.12 undefined Duty & Entry Rules → |
| 7305.19 | Subheading under Heading 7305 | HS 7305.19 undefined Duty & Entry Rules → |
| 7305.20 | Subheading under Heading 7305 | HS 7305.20 undefined Duty & Entry Rules → |
MODULE 13: Industry Classification & Crosswalk Mesh (NAICS & Schedule B)
U.S. Census NAICS Code
U.S. Census Schedule B (Exports)
Official Primary Sources & Authority References
USITC HTS Chapter 73 Tariff Schedule (2026) ↗
Official U.S. 10-digit tariff lines and general duty rates for Other, welded, Longitudinally welded.
CBP CROSS Ruling Database (7305.31) ↗
Binding customs classification precedents for Heading 7305.
MODULE 14: Frequently Asked Questions (FAQ) & Operational Guide
Is HS Code 7305.31 subject to U.S. Antidumping or Countervailing (AD/CVD) duties?
Yes. HS Code 7305.31 (Other, welded, Longitudinally welded) falls within the product scope of 10 active U.S. Department of Commerce AD/CVD order(s), including Large Diameter Welded Pipe, Large Diameter Welded Carbon and Alloy Steel Line and Structural Pipe, Large Diameter Welded Carbon and Alloy Steel Line Pipe from Canada, China, Greece, India, South Korea and 1 more (Commerce case(s) A-122-863, A-570-077, C-570-078, A-484-803, C-533-882, A-533-881 (+4 more)). Importers must verify exact product scope and their foreign manufacturer's exporter-specific duty deposit rate on Commerce's ACCESS portal (access.trade.gov) prior to U.S. Customs entry.
Is HS Code 7305.31 subject to U.S. Antidumping or Countervailing (AD/CVD) duties?
Yes. HS Code 7305.31 (Other, welded, Longitudinally welded) falls within the product scope of 10 active U.S. Department of Commerce AD/CVD order(s), including Large Diameter Welded Pipe, Large Diameter Welded Carbon and Alloy Steel Line and Structural Pipe, Large Diameter Welded Carbon and Alloy Steel Line Pipe from Canada, China, Greece, India, South Korea and 1 more (Commerce case(s) A-122-863, A-570-077, C-570-078, A-484-803, C-533-882, A-533-881 (+4 more)). Importers must verify exact product scope and their foreign manufacturer's exporter-specific duty deposit rate on Commerce's ACCESS portal (access.trade.gov) prior to U.S. Customs entry.
Is HS Code 7305.31 subject to U.S. Antidumping or Countervailing (AD/CVD) duties?
Yes. HS Code 7305.31 (Other, welded, Longitudinally welded) falls within the product scope of 10 active U.S. Department of Commerce AD/CVD order(s), including Large Diameter Welded Pipe, Large Diameter Welded Carbon and Alloy Steel Line and Structural Pipe, Large Diameter Welded Carbon and Alloy Steel Line Pipe from Canada, China, Greece, India, South Korea and 1 more (Commerce case(s) A-122-863, A-570-077, C-570-078, A-484-803, C-533-882, A-533-881 (+4 more)). Importers must verify exact product scope and their foreign manufacturer's exporter-specific duty deposit rate on Commerce's ACCESS portal (access.trade.gov) prior to U.S. Customs entry.
What is the 6-digit WCO tariff classification and United States (USITC HTS) general duty for Other, welded, Longitudinally welded?
Under WCO Harmonized System 2022 and United States (USITC HTS), Other, welded, Longitudinally welded is classified under HS 7305.31 (Heading 7305, Chapter 73). The representative US MFN general duty rate is Free.
How is HS 7305.31 distinguished within Heading 7305 (Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm , of iron or steel)?
Heading 7305 covers Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm , of iron or steel. Subheading 7305.31 specifically isolates Other, welded, Longitudinally welded. Importers must verify whether physical characteristics, processing state, or composition require alternative subheadings under Heading 7305.
What are the primary candidate subheadings related to HS 7305.31?
Related subheadings under Heading 7305 include 7305.11, 7305.12, 7305.19, 7305.20, 7305.39, 7305.90. Classification depends on processing stage, decaffeination, purity, or material form.
What mandatory commercial entry documents are required to import Other, welded, Longitudinally welded?
Commercial Invoice (detailing Incoterms, currency, and origin), Packing List, Bill of Lading (or Air Waybill), CBP Form 7501 Entry Summary, and a continuous customs bond are required for formal entries.
Can goods under HS 7305.31 enter duty-free under USMCA or Free Trade Agreements?
Yes. Eligible goods originating in Mexico, Canada, South Korea, or Australia enter duty-free under preference SPI codes (P, KR, AU) provided they satisfy Regional Value Content (RVC) or tariff-shift rules with a valid Certificate of Origin.
What is the US formal entry threshold for shipments of Other, welded, Longitudinally welded?
Commercial shipments of Other, welded, Longitudinally welded with a customs value exceeding $2,500 USD require formal customs entry (CBP Form 7501) and a continuous entry bond. Informal entry applies to lower values.
How can an importer obtain a binding CBP classification ruling for HS 7305.31?
Importers may submit an e-Ruling request under 19 CFR Part 177 to CBP National Commodity Specialist Division (NCSD) to obtain a legally binding tariff classification ruling prior to importation.
Are Section 232 tariffs applicable to steel/aluminum imports under HS 7305.31?
Yes. Products in Chapter 73 are subject to Presidential Section 232 trade remedies (Proclamation 9704). Steel articles generally incur an additional 25% ad valorem duty unless covered by an official Commerce Department exclusion or tariff-rate quota (TRQ).
What U.S. Census NAICS industry code corresponds to HS 7305.31?
HS 7305.31 maps to NAICS code 331110 (Iron and Steel Mills and Ferroalloy Manufacturing) under official U.S. Census Bureau trade concordance tables.
Does the United States assess federal VAT or GST on imports of HS 7305.31?
No. The United States does NOT charge a federal Value-Added Tax (VAT) or Goods and Services Tax (GST) on imports. Importers pay customs duty + MPF + HMF (if ocean freight).
How are Merchandise Processing Fee (MPF) and Harbor Maintenance Fee (HMF) calculated?
MPF is assessed at 0.3464% of entered value (min $32.71, max $634.62 per entry). HMF is assessed at 0.125% on ocean freight shipments entering US ports.
What is the Section 321 de minimis duty-free threshold for HS 7305.31?
Under Section 321 (19 U.S.C. 1321), eligible shipments valued at $800 USD or less imported by one person on one day enter duty-free and tax-free.
What U.S. Customs bond requirements apply to commercial entries under HS 7305.31?
Formal entries with customs value exceeding $2,500 USD require a continuous customs entry bond (CBP Form 301) to guarantee payment of duties, taxes, and fees.
What Importer Security Filing (ISF 10+2) rules apply to ocean imports of HS 7305.31?
Ocean container shipments bound for US ports require electronic ISF 10+2 submission via ACE at least 24 hours before loading at foreign ports.
How do USMCA preference rules apply to commercial imports under HS 7305.31?
Qualifying originating goods from Canada or Mexico meeting USMCA tariff-shift or Regional Value Content (RVC) rules enter duty-free under SPI code 'P'.
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