Alloy Steel Surface Casing for Offshore Oil Rigs from Japan
Heavy-walled welded alloy steel surface casing with 24-inch OD, deployed in offshore oil drilling to seal the upper borehole sections against formation fluids. Falls under HTS 7305.20.80.00 as other alloy steel casing exceeding 406.4 mm diameter for drilling operations. Corrosion-resistant alloy suitable for marine environments.
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 corrosion test certificates (e.g
• NACE MR0175) for sour service casings to support alloy classification
• Specify 'surface casing' end-use in entry summaries to differentiate from production tubing
• Measure and certify exact OD to avoid disputes over 406.4 mm threshold