Silicon Bronze Thick Plate 12mm from China
12mm silicon bronze plate (C65500), copper-tin alloy with silicon for corrosion resistance in marine hardware. Classified HTS 7409.39.10 for thickness >5mm and bronze composition where tin exceeds other elements.
Duty Rate — China → United States
38%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Document silicon <3% to maintain tin base classification; higher Si may challenge bronze status
• Specify 'of a thickness of 5mm or more' on commercial invoice to match subheading
• Watch for Section 232 tariffs if deemed strategic metal