Alloy Steel Heat Exchanger Tubing from China
Welded circular tubes of corrosion-resistant alloy steel, wall thickness 1.8 mm, for shell-and-tube heat exchangers in chemical processing. HTS 7306.50.50 as other thick-walled welded alloy tubes.
Duty Rate — China → United States
35%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Import Tips
• U-tube bend radii and finning details should not alter base tube classification
• PED or ASME certification stamps facilitate customs clearance for pressure equipment
• Traceability numbers on bundles prevent mixing with stainless grades