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HVAC Duct Blackplate Steel from China

Thin blackplate coils <0.361 mm for HVAC duct fabrication, cold-rolled nonalloy steel ≥600 mm wide. Fits HTS 7209.18.25.85 as uncoated cold-reduced product. Selected for Pittsburgh seam lock forming in spiral duct machines.

Duty Rate — China → United States

75%

Rate breakdown

9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter

Import Tips

Duct gauge typically 26-28 ga (0.45-0.50 mm total, but base <0.361 mm)—verify composite thickness

ASTM A1008 standard common—reference in import docs for quality assurance

Galvannealed confusion risk—ensure no zinc coating present for this classification