AL-6XN Super Austenitic Heat Exchanger Tube from Mexico
Super austenitic AL-6XN welded stainless tubes for extreme corrosion heat exchangers, wall ≥1.65 mm. High PREN for halide service. Classified HTS 7306.40.50.15 heat exchanger tubes.
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
• Document PREN >40 confirming super austenitic classification
• Specify process fluid corrosivity levels
• Confirm tariff shift rules for substantial transformation