AISI 4140 Alloy Steel Round Billet from China
A hot-rolled round billet made from AISI 4140 chromium-molybdenum alloy steel, used for manufacturing shafts and gears. Classified under HTS 7224.90.0075 as a semi-finished product of other alloy steel in primary forms, not meeting specific alloy definitions like tool steel or high-strength steel. It is further worked through hot rolling but remains in billet form prior to final forging.
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 certificates confirming alloy composition to avoid reclassification; ensure proper marking of steel grade per ASTM standards; watch for anti-dumping duties on certain alloy billets from specific countries