SA-213 TP310 Seamless Superheater Tube from Japan
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 — Japan → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 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