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

75%

Rate breakdown

9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 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

9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

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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