B390.0 Aluminum Foundry Ingot from Mexico
B390.0 is a hyper-eutectic alloy ingot for OEM cylinder liners and pistons, with primary silicon for abrasion resistance. HTS 7601.20.90.85 applies as a defined foundry ingot alloy with silicon >16%. Critical for high-performance engine foundry operations.
Duty Rate — Mexico → United States
50%
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
• Require supplier declaration of conformance to Aluminum Association standards for alloy designation
• Document end-use as foundry melting stock to prevent misclassification as semi-fabricated
• Calculate duties based on gross weight; ingot strapping adds minimal but declarable weight