7228.30.80.15/AISI 4140 Hot-Rolled Alloy Steel Round Bar/China

AISI 4140 Hot-Rolled Alloy Steel Round Bar from China

AISI 4140 is a chromium-molybdenum alloy steel round bar, hot-rolled to a diameter of 50 mm, used for shafts and gears in machinery. It falls under HTS 7228.30.80.15 as other bars and rods of alloy steel, not further worked than hot-rolled, with cross-section less than 76 mm. The alloy composition exceeds simple carbon steel definitions, qualifying it as 'other alloy steel' per chapter notes.

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

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Import Tips

• Provide mill test certificates confirming alloy composition (e.g

• Cr, Mo content) to verify classification as alloy steel under chapter note (e),Measure and document exact diameter at thinnest point; exceeding 76 mm shifts to different subheading,Avoid claims for rust/discoloration allowances per chapter note; inspect for further working like polishing