13-3/8 Inch P110 Casing with BTC Threads from Canada
High-strength P110 grade seamless alloy steel casing, 13-3/8 inch (339.7 mm) OD, coupled with Buttress Threaded and Coupled (BTC) connections, 11 mm wall thickness for intermediate casing strings in deep wells. Classified under HTS 7304.29.31.50 for its alloy steel composition, specified OD range, and thin wall.
Duty Rate — Canada → 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
• Provide detailed thread profile certification (BTC vs STC/HTC) as mismatches lead to reclassification
• Ensure heat treatment records show quenching and tempering for P110 grade to meet customs material verification