AISI 9310 Aircraft Gear Steel Billet from Mexico
High-performance AISI 9310 Ni-Cr-Mo alloy steel billets for nitrided aircraft gears and bearings. Classified 7224.90.00 as semi-finished other alloy steel, excluding ball-bearing steel note (h) compositions.
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 of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Aerospace end-use may require ITAR/EAR docs alongside steel certs; verify C 0.08-0.13%, Ni 3.0-3.5%
• Pitfall: rust/discoloration doesn't reduce duties per chapter note