TP347H Heat Exchanger Alloy Tube from China
Stabilized TP347H seamless alloy tube, 16-inch (406 mm max) OD for high-temp heat exchangers. Falls under HTS 7304.59.20.70 as other alloy steel tube for heat exchangers, precise OD range.
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
• Solution annealing certs required; measure OD post-processing; pitfall: exceeding 406.4 mm pushes to next size category