AISI 4140 Alloy Steel Strip from China
Flat-rolled strip of AISI 4140 chromium-molybdenum alloy steel, width 450 mm, thickness 1.5 mm, cold-rolled finish. Classified under HTS 7226.99.0180 as flat-rolled alloy steel product (not stainless), width under 600 mm, not further worked beyond basic rolling. Used in machinery shafts and gears.
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
• Provide mill test certificate confirming alloy composition meets Chapter 72 definitions (e.g
• Cr+Mo content)
• Declare exact width/thickness; products >=600mm shift to 7225 heading
• Avoid 'further worked' treatments like coating/polishing to prevent reclassification to 7226.91+