12Cr Seamless Steel Tube 13-inch OD from Mexico
Seamless 13-inch (330 mm) OD tube from 12% chromium alloy steel, 6 mm wall thickness, for desalination plant evaporators. Fits HTS 7304.59.80.60 as other alloy seamless circular tube, OD 285.8-406.4 mm, wall <12.7 mm. Martensitic structure offers superior erosion resistance in seawater.
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 hardness and pitting resistance tests confirming alloy properties
• Invoice wall thickness prominently; ultrasound reports prevent disputes
• Distinguish from boiler tubes if not pressure-rated to avoid higher scrutiny