AISI 4140 Alloy Steel Rectangular Bloom from China
A rectangular cross-section semi-finished product made from AISI 4140 chromium-molybdenum alloy steel, with width less than four times the thickness, used for forging into shafts and gears. Classified under HTS 7224.90.0045 as other alloy steel semi-finished products of rectangular shape not meeting rectangular bar criteria. Meets alloy steel definition with added chromium and molybdenum beyond carbon steel limits.
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 AISI 4140 specs; Ensure dimensions verify width <4x thickness ratio; Declare exact cross-sectional dimensions on entry documents to avoid reclassification