AISI 4340 Nickel-Chromium-Moly Alloy Steel Rod Coil from Mexico
High-strength AISI 4340 alloy steel hot-rolled in irregularly wound coils, circular cross-section less than 14 mm diameter. Falls under HTS 7227.90.60.30 as other alloy steel, distinguished from tool steel by composition per chapter note 1(e). Common for aerospace fasteners and structural components.
Duty Rate — Mexico → United States
10%
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
Import Tips
• Submit chemical analysis proving Ni-Cr-Mo content qualifies as alloy steel but not high-strength per note 1(a)
• Ensure no further working (coatings/polishing) per chapter note; such treatments move to 7228+ headings
• Declare exact diameter/coil weight; partial uncoiling risks classification as straight bars under 7227.90.10