Cold-Rolled 4340 High-Strength Alloy Steel Plate from Mexico

Cold-rolled 4340 nickel-chromium-molybdenum alloy steel plate, 3.5 mm thick, 1500 mm wide, used in aerospace components. Fits HTS 7225.50.80 for other cold-reduced alloy steel products wider than 600 mm and thinner than 4.75 mm, without further working.

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 detailed chemical composition reports proving alloy status (Ni, Cr, Mo content) per Chapter 72 notes

Measure width and thickness precisely; products ≥4.75mm shift to different statistical suffixes

Avoid reclassification pitfalls by ensuring no phosphatizing or other chemical treatments occurred post-rolling