AISI 4140 Alloy Steel Flat Bar from Mexico
Semi-finished AISI 4140 chromium-molybdenum alloy steel flat bar with rectangular cross section where width is at least four times the thickness, in primary form suitable for further processing. Classified under HTS 7224.90.0055 as other alloy steel semi-finished products (not tool steel or stainless) with specified dimensions. Excludes high-strength, universal mill, or other specially defined steels.
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
• Certify exact alloy composition excluding tool steel definitions (e.g
• >1.2% C + >10.5% Cr) to avoid reclassification
• Avoid rust/discoloration claims as no duty allowance per Chapter 72 note