Cold-Finished 4340 Alloy Steel Hexagonal Bar from China
High-strength 4340 nickel-chromium-molybdenum steel hexagonal bar, cold-finished to 40 mm across flats, for aerospace fasteners. Falls under HTS 7228.50.5015 as cold-finished alloy steel bars with cross-section under 76 mm, not further worked beyond cold-finishing. Alloy status from Ni-Cr-Mo elements exceeding Chapter 72 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
Import Tips
• Submit chemical analysis report proving Ni-Cr-Mo content meets alloy steel definition
• Document cold-finishing process (drawing/turning) to distinguish from hot-rolled products
• Check for minimum yield strength if high-strength steel note applies, affecting potential reclassification