Cold-Drawn Alloy Steel Superheater Riser Tube from China
Cold-drawn seamless riser tube of 2.25Cr-1Mo alloy steel for connecting superheater sections in utility boilers. Provides reliable high-pressure steam flow with oxidation resistance. Classified 7304.51.50.45 for superheaters.
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
• Specify riser tube geometry (length, bends) in commercial invoices accurately
• Include impact testing results for low-temperature ductility
• Avoid generic descriptions; use 'superheater riser' to match tariff language