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
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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