SA-213 TP310 Seamless Superheater Tube from Canada
TP310 high-nickel alloy steel seamless tube, 175 mm OD, for superheater sections in utility boilers exposed to extreme oxidation. Offers superior high-temperature strength per ASME SA-213. 7304.59.20.55 applies for alloy steel, seamless, boiler-suitable, mid-range OD.
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
• Document minimum tensile strength (515 MPa); use proper cradle packaging to prevent OD distortion
• Pitfall: alloy content misdeclaration affecting AD/CVD