Super Duplex 2507 Seamless Subsea Umbilical Tubing from Mexico
Super duplex stainless 2507 seamless tubing for hydraulic control lines in subsea umbilicals. Under HTS 7304.59.80 as other alloy steel seamless tubes circular cross section. Exceptional resistance to seawater corrosion and high pressures.
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
• Super duplex PREN >40 must be documented via chemical analysis certificates
• Umbilical bundle packaging doesn't change tube classification if separable
• API specs documentation supports oilfield end-use determination