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Galvalume AZ50 Coated Steel Sheet 0.45mm from China

Flat-rolled nonalloy steel sheet coated with 55% aluminum-zinc alloy (AZ50 designation), hot-dip applied, 0.45 mm thick and >600 mm wide. Classifies under HTS 7210.49.00.91 as 'other' zinc-plated/coated product since Galvalume is a zinc-based coating per tariff terms, not electrolytic. Used for long-life exterior cladding.

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

Provide coating composition analysis showing zinc as primary component to distinguish from aluminum coatings

Use calibrated gauges for thickness verification—tolerances can affect subheading within 7210.49

Include country-of-melt documentation; alloy coating origin may trigger separate origin rules