5083 Aluminum Alloy Billet from Japan
Marine-grade 5083 billets with 4-4.9% magnesium and 0.4-1% manganese, used for shipbuilding plates. Aluminum predominates with other elements >1%, per note (b). Other unwrought alloy under 7601.20.90.95.
Duty Rate — Japan → 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
• Marine alloys often face Coast Guard specs—include material safety data in entries
• Monitor magnesium content declarations closely; fluctuations can trigger alloy vs non-alloy debates