Seamless Incoloy 800H Heat Exchanger Tube from China
Cold-drawn seamless tube from Incoloy 800H nickel-chromium alloy steel, heat-resisting for shell-and-tube heat exchangers in refineries. Provides creep resistance at elevated temperatures in corrosive environments. Under 7304.51.50.15 for cold-reduced seamless heat-resisting steel tubes suitable for heat exchangers.
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
• Submit alloy analysis confirming >1.5% chromium and nickel content qualifying as heat-resisting steel per HTS notes
• Avoid reclassification by proving individual tube import vs. exchanger assembly; provide end-use affidavits if needed