ASME SA-335 P11 Seamless Superheater Tube from Mexico
SA-335 P11 grade seamless alloy steel tubes are used in fossil fuel power plant superheaters for steam generation at extreme temperatures. The 1.25% chromium-molybdenum composition ensures creep resistance in boiler environments. Qualifies for 7304.59.20 as seamless, circular alloy steel tubes for superheaters.
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 NDT (non-destructive testing) reports mandatory for superheater applications under boiler codes
• Declare exact outer diameter and wall thickness to confirm circular tube status vs. pipe