7304.59.20.80/SA-213 TP347H Seamless Boiler Tube/Mexico

SA-213 TP347H Seamless Boiler Tube from Mexico

Seamless tube made from TP347H stabilized austenitic stainless steel alloy, designed for high-temperature service in superheaters and boilers. It has an outside diameter of 457 mm, exceeding 406.4 mm, and meets ASME SA-213 specifications for pressure parts in power generation boilers. Classified under 7304.59.20.80 due to its seamless construction, alloy steel composition, circular cross-section, and suitability for boilers with large OD.

Duty Rate — Mexico → 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

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Import Tips

• Obtain material test reports (MTRs) certifying chemical composition and mechanical properties to confirm alloy steel status and ASME compliance

• Ensure marking includes heat number, grade, and seamless designation per ASTM/ASME specs to avoid reclassification during customs exam

• Verify outside diameter measurement exceeds 406.4 mm with caliper certification; common pitfall is mismeasuring welded vs. seamless products