4.5-inch P110 Alloy Steel Casing Tubing from Mexico
Seamless P110 grade alloy steel tubing with 4.5-inch (114.3 mm) OD and 12 mm wall thickness, used as casing in oil well drilling to line boreholes. Meets HTS 7304.23.60.45 criteria as seamless alloy steel drill pipe/casing with OD ≤168.3 mm and wall >9.5 mm.
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
• Hydrostatic test certificates required to prove pressure rating meets API 5CT P110 specifications
• Clearly mark 'OIL WELL CASING' on packaging and documentation to distinguish from line pipe
• Verify chrome/moly content in alloy analysis to confirm classification as alloy steel vs carbon steel