12-1/4 inch Super Duplex Casing from China
Seamless super duplex 2507 stainless casing with 12.25 inch OD and 11.2 mm wall thickness for extreme corrosion environments in oil/gas drilling. Classified in HTS 7304.24.4050 for stainless steel seamless casing within size limits.
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 chemical composition analysis proving super duplex stainless steel alloy content
• Declare exact wall thickness measurement method (ultrasonic testing preferred)
• Separate threaded vs plain end casing; threading may affect accessory classification