Alloy Steel Heat Exchanger Tube 15-inch OD from China
Seamless circular tube of chrome-moly alloy steel, 380 mm OD and 8.5 mm wall thickness, used in shell-and-tube heat exchangers for petrochemical processing. Classified under HTS 7304.59.80.60 for its alloy composition, precise OD range (285.8-406.4 mm), and thin walls suitable for heat transfer efficiency. Corrosion-resistant properties make it ideal for handling hot fluids.
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
• Obtain ASTM A335 certification proving alloy grades like P11/P22 to justify 7304.59 classification
• Declare exact OD and wall measurements; exceeding 406.4 mm shifts to different statistical suffix