AISI 9310 Aircraft Gear Steel Billet from China
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 — China → United States
35%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 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