5-1/2 inch L80-9CR Casing from Mexico
9% Chromium L80-9CR seamless casing pipe, 5-1/2 inch OD with wall thickness under 12.7 mm, featuring VAM TOP threaded and coupled connections. Designed for sour service (H2S) environments in gas wells. Falls under HTS 7304.29.31.10 as other alloy steel seamless casing for drilling operations.
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 NACE MR0175/ISO 15156 certification for sour service materials
• Specify chromium content (9%) in material certificates to confirm alloy classification
• Document connection type (VAM TOP) as premium threaded connection