4.5-inch N-80 Casing Pipe from Mexico
Seamless N-80 nonalloy steel casing pipe, 4.5-inch (114.3 mm) OD, 13.5 mm wall thickness, with premium threaded connections and couplings for deep oil/gas wells. HTS 7304.29.10.20 applies due to seamless construction, nonalloy material, drilling casing purpose, sub-215.9 mm diameter, and thick walls for structural integrity. Used primarily in production casing applications.
Duty Rate — Mexico → 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
9903.05.900%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
• Submit API 5CT grade verification and hydrostatic test results
• Clearly mark as 'oil/gas casing' vs. tubing on manifests
• Pitfall: confusing with drill pipe, which has separate tubing subheading