Alloy Steel Heat Exchanger Tubing from Mexico
U-bent or straight tubes from Alloy 800H/825 for shell-and-tube heat exchangers in chemical processing. Classified 7306.90.5000 as other alloy steel tubes excluding boiler/precision types.
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
• ASTM B407/B424 material certs with U-bend radius documentation required
• Specify finned or bare tube status for valuation accuracy
• CVD risk on Ni-bearing alloys; full chemical analysis needed