Cold-Rolled Invar 36 Alloy Steel Foil from Mexico
Low-expansion Invar 36 (Fe-36%Ni) alloy steel foil, cold-rolled to thickness not exceeding 0.25 mm and width under 300 mm for electronics applications. Falls under HTS 7226.92.70.50 as other cold-rolled alloy steel flat-rolled products.
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
• Critical thermal expansion specs must match invoice; mismatch leads to reclassification disputes
• Foil must arrive in protective packaging; rust/discoloration gets no duty allowance per Chapter 72 note
• Verify no heat treatment post-rolling; annealing would constitute further working