Alloy 825 Heat Exchanger Tube from Mexico
Welded nickel-iron-chromium alloy 825 tubes (stainless steel per tariff definition) with heavy walls for severe corrosive heat exchanger service in chemical plants. Excellent resistance to sulfuric acid. Classified HTS 7306.40.50.15 for heat exchanger use.
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 already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Verify stainless steel status via chromium content ≥1.2% per Chapter Note
• Provide corrosion test data supporting chemical process end-use
• Confirm if alloy composition triggers separate nickel product tariffs