Large Diameter Welded Carbon and Alloy Steel Structural Pipe — China — C-570-078

This US trade measure concerns large-diameter welded carbon and alloy steel structural pipe. The product scope generally focuses on the pipe’s material, diameter, welding method, shape, and intended structural use. Classification is based on the legal product description in the official order or notice—not only on the product name, commercial description, or HTSUS code.

“AD/CVD” means antidumping and countervailing duties. Antidumping (AD) duties address imports sold at less than fair value, while countervailing (CVD) duties address certain foreign government subsidies. These measures typically affect importers of covered merchandise from specified countries, as well as foreign producers, exporters, and sometimes US customers or related parties. An importer may face additional duty liability, entry requirements, and recordkeeping obligations beyond ordinary customs duties.

What to check

• Read the official scope language and compare the product’s dimensions, steel composition, welding process, coating, shape, and use; do not rely on the tariff number alone.
• Confirm the product’s country of origin and identify the foreign producer and exporter, because coverage and duty treatment can depend on these facts.
• Check whether the entry requires AD/CVD procedures, such as a separate case-related reporting field, cash-deposit requirement, or other instructions from US Customs and Border Protection.
• Review invoices, mill certificates, technical drawings, purchase orders, and production records so the product can be matched to the scope and the declared facts can be supported.
• Ask a customs broker or trade counsel to analyze borderline products, exclusions, scope rulings, and the correct entry treatment before importing.