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7228.60.60.00/AISI 4140 Alloy Steel Round Bar/China

AISI 4140 Alloy Steel Round Bar from China

A hot-rolled round bar made from AISI 4140 chromium-molybdenum alloy steel, commonly used for shafts, gears, and axles in machinery. It falls under HTS 7228.60.60.00 as a non-cold-formed bar of other alloy steel, not meeting specific alloy steel definitions in chapter notes like tool steel or ball-bearing steel. The product is supplied in straight lengths without cold-forming processes.

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 to verify classification under 'other alloy steel' and avoid reclassification as tool steel

• Ensure documentation specifies hot-rolled or forged production method to distinguish from cold-formed products under different subheadings

• Check for minimum alloying elements (e.g

• chromium >0.9%, molybdenum) as per HTS Chapter 72 definitions to prevent misclassification