C90500 Gun Metal Sheet 2.8mm x 620mm from Mexico
C90500 gunmetal (88Cu-10Sn-2Zn) wrought sheet, 2.8mm thick x 620mm wide. Borderline bronze but zinc <10% and tin predominant classifies as 'other copper alloy' in 7409.90.50.
Duty Rate — Mexico → United States
51.7%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Detailed spectrographic analysis needed for Sn/Zn dispute resolution
• Declare as wrought, not cast; microstructure evidence required
• Marine applications may need Lloyd's approval certificates