AISI 4340 Nickel-Chromium-Molybdenum Flat Slab from China
AISI 4340 low-alloy steel flat slab in semi-finished form with width at least four times thickness, used for aerospace and structural applications. Falls under HTS 7224.90.0055 as rectangular cross-section other alloy steel, excluding special definitions like razor blade or ball-bearing steel.
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
• Document Ni-Cr-Mo content to confirm 'other alloy steel' status, avoiding tool steel reclassification
• Measure and certify cross-sectional dimensions precisely to meet 'width at least four times thickness' criteria
• Declare as semi-finished (not further worked like coated/polished) per Chapter note