7 Inch L80 Coupled Surface Casing from China
7-inch OD L80 nonalloy steel seamless casing with premium threaded couplings, used as surface casing in oil drilling to prevent collapse. Meets API standards for drilling tubing. 7304.29.10 applies to its threaded nonalloy steel construction for oil/gas.
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 already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include hydrostatic test certificates to validate pressure ratings for customs verification
• Differentiate from tubing by specifying 'casing' use; mislabeling as 'tubing' risks 7304.29.20
• Comply with country-of-melt requirements; trace steel origin to origin country for duty calculation