Boiler Superheater from China
A component that heats steam beyond its saturation point after leaving the boiler drum, increasing energy content for turbine use in power generation. Classified under HTS 8404.10.00 as auxiliary plant for boilers of 8402/8403 due to its direct integration in the steam cycle. Constructed with high-temperature alloy tubes to handle superheated conditions.
Duty Rate — China → United States
38.5%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide steam flow diagrams showing integration with boiler to substantiate auxiliary classification
• Label materials precisely (e.g
• SA-213 T11 alloy steel) to meet metallurgical import standards
• Avoid misdeclaration as standalone heat exchangers by including boiler-specific mounting specs