13-3/8 inch 68 lb/ft L-80 Type 13Cr Casing from Mexico
Seamless alloy steel oil well casing pipe with 13-3/8 inch outside diameter, 68 lb/ft weight, L-80 grade with 13% chromium content for corrosion resistance in sour gas environments. Features API STC threaded couplings and wall thickness exceeding 12.7 mm, classified under HTS 7304.29.31.20 for heavy-duty drilling applications in oil and gas wells.
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
• Obtain Mill Test Certificates (MTC) verifying chemical composition and mechanical properties per API 5CT specs; ensure API monogram marking for customs verification
• Declare exact OD, wall thickness, and grade to avoid reclassification; common pitfall is misstating weight per foot leading to wrong statistical suffix