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7228.30.80.41/AISI 4140 Hot-Rolled Alloy Steel Round Bar 100 mm Diameter/China

AISI 4140 Hot-Rolled Alloy Steel Round Bar 100 mm Diameter from China

AISI 4140 chromium-molybdenum alloy steel round bar, hot-rolled with a diameter of 100 mm, used in oilfield drilling tools and heavy machinery components. Classified under HTS 7228.30.80.41 as other hot-rolled alloy steel bars not further worked, with cross-section between 76-152 mm. Meets alloy steel definition due to chromium and molybdenum content exceeding Chapter 72 note thresholds.

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 certificate confirming alloy composition (Cr, Mo content) and hot-rolled condition to avoid reclassification as carbon steel

• Ensure accurate dimensional measurement documentation; CBP measures cross-section upon entry to verify 76-152 mm range

• Declare as 'not further worked' - any polishing or coating shifts to 7228.60 or higher duty subheadings