4-1/2 Inch N80 Type 304 Stainless Casing from Mexico
Seamless Type 304 stainless steel casing pipe per API 5CT N80 grade, 4-1/2 inch OD (114.3 mm), 9.19 lb/ft weight with 8.56 mm wall thickness, featuring BTC (Buttress Threaded and Coupled) connections. Used to stabilize wellbore during oil and gas extraction. Classified under 7304.24.30.10 for stainless steel seamless casing with OD <215.9 mm and thin walls.
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
• Include hydrostatic test reports and chemical composition analysis proving stainless steel grade and seamless manufacture
• Label shipments clearly as 'oil well casing' to prevent confusion with line pipe or structural tubing
• Verify coupling specifications match API standards to avoid reclassification as uncoupled tubing