AD ORDER China A-570-077 (AD)

U.S. Antidumping Duty on Large Diameter Welded Carbon and Alloy Steel Line and Structural Pipe from China (A-570-077)

This is an educational summary — NOT a scope determination or filing advice. It does not decide whether your specific goods are covered. Always verify against the latest U.S. Commerce and CBP instructions.

This explainer covers the U.S. antidumping (AD) duty order on large diameter welded carbon and alloy steel line and structural pipe from China under case number A-570-077.

Case snapshot

Product	Large Diameter Welded Carbon and Alloy Steel Line and Structural Pipe
Country	China
Case type	AD
Case number(s)	A-570-077 (AD)
Status	Active / continued
Scope control	Commerce written scope language
HTS role	Reference / screening only
Rate note	Varies by exporter/producer and administrative review

Key dates

A-570-077 (AD)	Federal Register: 2026-03 FR notice 2026-04059 (Opportunity to Request Review)
Status as of	Active — 2026-07-03
Expiration	No fixed expiration date. AD/CVD orders remain in place subject to five-year sunset reviews, and stay active unless revoked after Commerce/ITC review or other Commerce action.
Last checked by ETDETA	2026-07-03

Effective/entry-specific deposit and liquidation treatment depends on Commerce and CBP instructions, not only the publication date.

Large diameter welded carbon and alloy steel line and structural pipe from China may fall within the U.S. antidumping duty order under case number A-570-077, an AD-type order administered by the U.S. Department of Commerce. This is an antidumping order only; no countervailing (CVD) case number was provided here. Importers should verify whether their specific goods may be covered before entry.

Scope — simplified screening examples, not full legal scope

The official written scope controls. The examples below are screening references only.

Products that may be covered (examples)

•Welded line pipe produced from carbon or alloy steel, typically made to API 5L specifications and designed to convey liquids and gases, may be covered
•Welded structural pipe of carbon or alloy steel used for structural or load-bearing applications may be covered
•Large diameter welded carbon steel line pipe of Chinese origin may be covered
•Large diameter welded alloy steel structural pipe of Chinese origin may be covered
•Welded pipe meeting the line/structural product descriptions regardless of finishing or coating may be covered depending on scope
•Certain unfinished or further-processed welded line or structural pipe may be covered depending on Commerce's written scope

Products that may require separate review or may fall outside this order

?Stainless steel pipe, which the ITC made a negative determination on, is commonly outside this order
?Seamless pipe (as opposed to welded pipe) may fall outside this welded-pipe order
?Oil country tubular goods (OCTG) or other pipe covered by separate orders may fall outside this scope
?Pipe not meeting the line or structural product descriptions may fall outside the order
?Non-Chinese origin pipe would typically be outside this China-specific order (though other country orders can exist)

Scope control: Any HTS codes are screening references only; Commerce's written scope language (see the order's Appendix) controls whether a product is covered, and parts, unfinished, or further-processed items may still be covered depending on that scope.

Who it affects

This typically matters for importers of large diameter welded carbon or alloy steel line pipe (often API 5L) and welded structural pipe manufactured in or exported from China, including buyers of pipe for energy conveyance or structural/construction uses.

What the duty means

If merchandise is covered, AD cash deposits are collected at entry; rates vary by exporter/producer and administrative review and can be high. A 0% cash-deposit rate is NOT an exemption — the order still applies and entries must be declared. Only an AD order is identified here; no separate CVD deposit case number was provided.

Importer checklist — how to assess your risk

☐Gather the full commercial invoice description of the pipe, including whether it is welded and its intended line or structural use
☐Collect product photos, mill certificates, and spec sheets (e.g., API 5L or structural specification references)
☐Document the material composition to distinguish carbon/alloy steel from stainless steel
☐Confirm the country of origin with supporting manufacturing evidence, not just labeling
☐Record the manufacturer and exporter names and verify the specific producer/exporter combination
☐Determine the appropriate HTS classification as a screening reference only
☐Consult a licensed customs broker or trade attorney to confirm scope applicability
☐Do not rely only on supplier statements that goods are 'not subject' — obtain independent verification
☐Verify the current cash-deposit rate against current Commerce results and CBP AD/CVD messages before filing

Risks to watch

⚠Circumvention or transshipment findings where goods are routed through third countries to disguise Chinese origin
⚠Scope inquiries that may bring borderline or further-processed pipe within the order
⚠Using the wrong exporter/producer combination and applying an incorrect cash-deposit rate
⚠Misdeclaration or misclassification leading to penalties, retroactive duties, and enforcement action

The same or similar welded pipe products may be subject to antidumping or countervailing orders from other countries as well, so each country of origin should be reviewed separately without pursuing any evasion strategy.

FAQ

Is there antidumping duty on large diameter welded carbon and alloy steel line and structural pipe from China?

There is a U.S. antidumping duty order on welded line and structural pipe from China under case number A-570-077. Whether your specific goods may be covered depends on Commerce's written scope, so importers should verify before entry.

Does a 0% deposit rate mean no duty?

No. A 0% cash-deposit rate is not an exemption. The order still applies, entries must still be declared as subject merchandise, and final duties can change through administrative review.

Are parts or unassembled pipe covered?

Parts, unfinished, or further-processed pipe may still be covered depending on Commerce's written scope language. Importers should verify the specific product against the scope rather than assuming exclusion.

Possible risk

Risk signal: Higher concern if the goods are welded carbon or alloy steel line or structural pipe of Chinese origin; a separate review is needed for stainless steel pipe, seamless pipe, parts, unfinished items, and any third-country processing. This does not state that your goods are covered.

Bottom line: Large diameter welded carbon and alloy steel line and structural pipe from China may be covered by AD case A-570-077; confirm scope, origin, exporter/producer identity, and current deposit rates before entry.

Not a scope determination or filing advice — confirm coverage and current deposit rates with a licensed customs broker and the latest Commerce/CBP instructions before entry.

Official sources

These links are for source verification. Confirm the latest applicable rate and instructions with Commerce/CBP before entry.

· Federal Register notice (2026-03 FR notice 2026-04059 (Opportunity to Request Review))
· Commerce ACCESS — AD/CVD proceedings & scope rulings
· CBP ACE AD/CVD case search & messages
· USITC sunset/injury reviews
HTS codes are provided for reference/screening only.

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Educational summary of a public U.S. Department of Commerce AD/CVD order — not legal advice, a customs broker opinion, or a scope determination. Whether specific goods fall within an order's scope must be confirmed with a licensed customs broker and the latest Commerce/CBP notices.

Last updated: 2026-07-16