Seamless Alloy Steel Heat Exchanger Tube from China
Thick-walled seamless alloy tubes, 181 mm OD and 23 mm wall, for shell-and-tube heat exchangers in refineries. Classified 7304.59.80.40: seamless, alloy, circular, correct OD range, wall ≥19 mm.
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
• Specify U-bend capability if applicable; straight lengths stay tube classification
• Test for intergranular corrosion resistance typical of heat exchanger service
• Document NACE MR0175 compliance for sour service applications