Incoloy 800 Heat Exchanger Tube from China
Incoloy 800 seamless tubes are precision-engineered for heat exchangers in petrochemical plants, offering exceptional resistance to oxidation and carburization. These circular cross-section pipes withstand high temperatures in condenser and feedwater heater systems. Falls under 7304.59.20 as seamless alloy steel tubes suitable for heat exchangers per official descriptions.
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
• Include hydrostatic test certificates proving pressure suitability for superheaters or condensers
• Label with exact alloy grade (e.g
• Incoloy 800H) to avoid reclassification to carbon steel tubes