AISI 4140 Alloy Steel Rectangular Bloom from China
A rectangular cross-section semi-finished product made from AISI 4140 chromium-molybdenum alloy steel, with width less than four times the thickness, used for forging into shafts and gears. Classified under HTS 7224.90.0045 as other alloy steel semi-finished products of rectangular shape not meeting rectangular bar criteria. Meets alloy steel definition with added chromium and molybdenum beyond carbon steel limits.
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)
Import Tips
• Provide mill test certificate confirming alloy composition meets AISI 4140 specs; Ensure dimensions verify width <4x thickness ratio; Declare exact cross-sectional dimensions on entry documents to avoid reclassification