SA-335 P11 Seamless Superheater Tube from Canada
Seamless low-alloy steel tube grade P11 (1.25% chromium, 0.5% molybdenum) with 12-inch (304.8 mm) OD, engineered for superheaters in power generation boilers. Classified under HTS 7304.59.20.70 for its alloy steel makeup, boiler suitability, and specified diameter range.
Duty Rate — Canada → 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 ASME certification and hydrostatic test results to prove boiler suitability; watch for alloy content thresholds to prevent shift to carbon steel headings; use precise OD caliper measurements for customs declaration