Heavy Wall Seamless Boiler Tube from Japan
Seamless boiler tube with 177.8 mm OD and 28 mm wall thickness, made from nonalloy steel for high-pressure steam systems in industrial boilers. Precision-engineered for heat resistance and structural strength. Classified in HTS 7304.39.0044 matching its seamless, circular, nonalloy steel profile with OD 114.3-190.5 mm and wall ≥19 mm.
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
• ASME boiler code certification required; tubes may need pressure vessel markings for customs clearance
• Distinguish from structural tubing by end-use documentation; boiler tubes risk reclass to 7304.90 if not proven high-pressure
• Batch test reports must confirm no alloy elements exceeding nonalloy limits