Electrogalvanized Steel Coils for HVAC Ductwork from China

Continuous coils of electrolytically zinc-coated nonalloy steel, width exceeding 600 mm, used in heating/cooling duct fabrication. HTS 7210.70.60.30 covers electrolytic plating distinguishing from hot-dip methods. Uniform coating ensures long-term corrosion resistance in duct applications.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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

Import Tips

Include coating weight certificates (e.g

ZF coating designation); ensure coil ID/OD measurements comply with flat-rolled definitions; beware of misclassification as structural steel if thickness exceeds typical sheet ranges