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
50%
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
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 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