Alloy Steel Large Chimney Flue Pipe from China
Welded alloy steel flue pipe sections exceeding 406.4 mm OD for industrial incinerator chimneys. Under 7305.39.50.00 for welded circular large-diameter alloy pipes.
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
• High-temperature alloy certs (e.g
• 9Cr-1Mo) required
• Thermal expansion specs in documentation
• Distinguish from boiler tubes via end-use statements