AISI 439 Stainless Steel Sheet from Mexico
Flat-rolled stainless steel sheet conforming to AISI 439 grade with approximately 17% chromium but certified as containing less than 15% by weight overall due to specific alloy composition, width over 600 mm, used in automotive exhaust systems. This falls under HTS 7219.90.00.60 as flat-rolled stainless steel products, not cold-rolled, of width 600 mm or more, other, containing less than 15% chromium. It meets Chapter 72 definitions for stainless steel despite chromium content nuance.
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
• 1
• Provide mill test certificates verifying chromium content below 15% by weight; 2
• Ensure width measurement exceeds 600 mm at entry; 3
• Avoid classifying as heat-resisting steel (note g) without exact composition match