12 inch 65# Type 317 Stainless Casing for HPHT Wells from Mexico
Type 317 stainless steel seamless casing designed for high-pressure high-temperature (HPHT) wells, 12 inch OD (304.8 mm), 65 lb/ft, 16.5 mm wall thickness, premium threaded/coupled connections. 7304.24.30.40 applies due to stainless composition, seamless manufacture, drilling casing function, correct OD range, and thick 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
• Provide heat treatment records for HPQT compliance; verify minimum yield strength testing; ensure proper thread compound compatibility documentation