SA-213 TP347H Seamless Boiler Tube from China
Seamless tube made from TP347H stabilized austenitic stainless steel alloy, with an outside diameter of 250 mm, designed specifically for high-temperature superheaters in industrial boilers. It falls under HTS 7304.59.20.60 due to its seamless construction, circular cross-section, alloy steel composition, and suitability for superheaters with the specified diameter range. These tubes withstand extreme pressures and temperatures in power generation.
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
• Verify material certification to ASTM A213/ ASME SA-213 standards proving alloy composition and seamless production; obtain end-user declarations confirming boiler/superheater use to avoid reclassification; watch for diameter measurement discrepancies during customs inspection