Cold-Formed 4140 Alloy Steel Round Bar from China
A 4140 chromium-molybdenum alloy steel bar, cold-formed with a diameter of 25 mm, used in mechanical engineering for shafts and gears. Classified under HTS 7228.50.5015 as other bars and rods of alloy steel, not further worked than cold-formed or cold-finished, with cross-section less than 76 mm. Meets alloy steel definition due to chromium and molybdenum content.
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 (Cr, Mo content) to verify classification as alloy steel
• Ensure accurate dimensional measurement documentation; cross-section must be certified under 76 mm
• Avoid common pitfall of misclassifying as hot-rolled (7228.30); cold-forming process must be documented