AISI 4340 Chromium-Molybdenum Steel Sheet from China

Flat-rolled sheet of AISI 4340 nickel-chromium-molybdenum alloy steel, width over 600 mm, commonly used in aerospace and automotive components. Falls under HTS 7225.99.00 as other alloy steel not specified in chapter notes for tool steel, ball-bearing steel, or heat-resisting alloys. Supplied in annealed condition without further surface treatments.

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

Submit detailed chemical composition reports to distinguish from stainless (Chapter 72 heading 7220) or specific alloys

Ensure product is not in coils if intending 7225 classification; coiled products may go to 7225.99.0090

Label shipments clearly as 'not further worked' to prevent misclassification into coated or clad categories