SA-213 TP347H Superheater Tube from China
TP347H stabilized stainless seamless tubes for superheaters in utility boilers, resisting intergranular corrosion after welding. Heavy wall construction handles 600°C+ steam conditions. Under 7304.59.20 for alloy steel tubes in superheaters.
Duty Rate — China → United States
75%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Specify H-grade (high carbon) in documentation for proper alloy recognition
• Mill test reports must include tensile and creep rupture data