Grade T91 Superheater Seamless Tube from Canada
Advanced T91 (9% Cr, 1% Mo, V-modified) seamless alloy tube, 15.75-inch (400 mm) OD for modern ultra-supercritical superheaters. Meets HTS 7304.59.20.70 as other alloy steel, seamless, superheater-suited, within OD limits.
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
• Normalize and temper heat treatment certs mandatory; verify no wire drawing (per chapter note); declare as 'other alloy' to avoid stainless misclass