ASTM A179 Carbon Steel Superheater Tube OD 19mm from Japan
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 — Japan → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 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