What is the HS code for tube fitting?

7307.99 (Tube or pipe fittings of iron/steel). The 10-digit US HTS code is 7307.99.10.00. Always confirm against the exact material and function of your product.

What is the US import duty for tube fitting from China?

About 78.7% ad valorem when stacked: MFN base rate (Col. 1 General) 3.7%; Section 301 · List 3 (China origin — list scope approximated by chapter, official list prevails) 25.0%; Section 232 · Steel 50% 50.0%. Each line links to its official source and effective date. Federal MPF/HMF are additional.

Where does this HS code data come from?

US HTS 2026 (USITC), Section 301 (USTR), Section 232 (BIS) and Section 122 (Federal Register). Every rate carries a source_url and effective_from. Current build uses a structurally-real sample dataset.

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HS Code for Tube Fitting

The HS code for tube fitting is 7307.99 (Tube or pipe fittings of iron/steel). In the United States, the full 10-digit HTS code is 7307.99.10.00, and goods made in China currently carry a stacked ad-valorem duty of about 78.7% once Section 301, 232 and 122 measures are applied.

Code variants for tube fitting

Classification changes with material, power and construction. Pick the row that matches your product — each code links to its full tariff breakdown.

Variant	HS6	Why	Detail
Steel tube/pipe fittings	7307.99	Tube or pipe fittings of iron/steel are classified under 7307.99.	7307.99.10.00 →

US duty stack for tube fitting (made in China)

Classification Receipt

7307.99.10.00

Tube or pipe fittings of iron/steel

MFN base rate (Col. 1 General)Source: USITC HTS 2026 · effective 2026-01-01	3.7%
Section 301 · List 3 (China origin — list scope approximated by chapter, official list prevails)Source: USTR · Section 301 · effective 2019-05-10	+25.0%
Section 232 · Steel 50%Source: BIS · Section 232 · effective 2025-06-04	+50.0%
Total ad valorem (× customs value)	78.7%

✓ Computed by the rule engine · every line carries its official source · plus MPF 0.3464% + HMF 0.125% (ocean)HTS-2026-Rev.11 · US ← CN

Example lane: China → US. Other origins and landed cost: landed-cost calculator. Full code detail: 7307.99.10.00 →

FAQ

What is the HS code for tube fitting?: 7307.99 (Tube or pipe fittings of iron/steel). The 10-digit US HTS code is 7307.99.10.00. Always confirm against the exact material and function of your product.
What is the US import duty for tube fitting from China?: About 78.7% ad valorem when stacked: MFN base rate (Col. 1 General) 3.7%; Section 301 · List 3 (China origin — list scope approximated by chapter, official list prevails) 25.0%; Section 232 · Steel 50% 50.0%. Each line links to its official source and effective date. Federal MPF/HMF are additional.
Where does this HS code data come from?: US HTS 2026 (USITC), Section 301 (USTR), Section 232 (BIS) and Section 122 (Federal Register). Every rate carries a source_url and effective_from. Current build uses a structurally-real sample dataset.

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