G90 Hot-Dip Galvanized Lockforming Quality from Mexico
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 — Mexico → United States
10%
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
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