TP321 Stainless Feedwater Heater Tube from China
Seamless TP321 stabilized stainless steel tube for high-pressure feedwater heaters in thermal power stations, resistant to intergranular corrosion. Circular cross-section engineered for deaeration and preheating processes. Qualifies for 7304.49.0045 due to feedwater heater suitability and seamless stainless steel makeup.
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
• Certification of titanium stabilization essential for TP321 to prevent weld decay in heater service
• Include design pressure/temperature ratings matching feedwater heater specs (typically 100-200 bar)