G90 Hot-Dip Galvanized Lockforming Quality from China
Heavy G90 zinc-coated galvanized sheet >600 mm wide, grade LF for HVAC lock-seam ductwork. HTS 7210.49.00 other zinc-plated nonalloy steel flat products. High coating for forming without cracking.
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
• Lockforming grade certs essential; standard commercial steel fails formability tests
• G90 declaration (0.90 oz/ft²) critical—under/over risks yield point misclassification