Cold-Reduced Boiler Wall Tube Grade T91 from China
Cold-reduced T91 seamless tube for furnace wall panels in supercritical boilers. Advanced 9Cr steel for ultra-high efficiency plants. Suitable for boilers under 7304.51.50.45.
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
• Normalize & temper certs mandatory for T91; reject inadequate heat treatment
• Dimension tolerances tighter for wall tubes; measure before shipping