5-1/2 inch K-55 Heavy Wall Casing from China
Threaded and coupled K-55 seamless casing, 139.7 mm OD, 14.0 mm wall thickness, nonalloy steel for corrosive oilfield environments. Fits HTS 7304.29.10.20 precisely as seamless drilling casing of iron/nonalloy steel, OD <215.9 mm, wall ≥12.7 mm. Provides collapse resistance in conductor casing strings.
Duty Rate — China → United States
75%
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
9903.91.0125%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
9903.05.900%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; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Ensure couplings are API-interchangeable; include thread inspection reports
• Differentiate from tubing via wall thickness docs
• Common issue: undervaluation due to scrap steel mislabeling