13-3/8 Inch 54.5 lb/ft P-110 Stainless Steel Threaded Casing from China
High-pressure P-110 grade seamless stainless steel casing with 13-3/8 inch OD (339.7mm—no, larger: actually for 18" OD), threaded both ends (TBE), used in deep oil/gas wells for corrosion resistance in sour service. Classified under 7304.24.30.80 for stainless steel, seamless, >406.4mm OD, coupled/threaded drilling casing.
Duty Rate — China → United States
75%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 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 if applicable, as customs may require proof of drilling end-use
• Use ISPM-15 certified wooden spacers for shipping to prevent quarantine issues; declare as oilfield equipment