ASTM A179 Carbon Steel Superheater Tube OD 19mm from China
Seamless cold-drawn carbon steel tube conforming to ASTM A179 standards, with 19mm OD for superheater applications in power plants. Classified under HTS 7304.39.0002 for its non-alloy steel composition, circular seamless profile, and design for superheaters handling high-temperature steam. Provides excellent corrosion resistance and thermal conductivity.
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
• Include ASTM A179 certification and hydrostatic test results to prove suitability for superheaters
• Measure and declare precise OD; tubes approaching 38.1mm risk reclassification to higher diameter subheadings
• Avoid bulk packaging misdeclared as raw material; specify finished tube form for correct heading