SA-213 TP304 Seamless Alloy Steel Boiler Tube from China
This seamless tube made from TP304 austenitic stainless alloy steel has an outside diameter of 150 mm and is designed for high-pressure boiler applications. It meets ASME SA-213 specifications for use in superheaters and boilers, ensuring resistance to corrosion and high temperatures. Classified under 7304.59.20.55 due to its circular cross-section, alloy steel composition, and OD between 114.3 mm and 190.5 mm, suitable for boiler service.
Duty Rate — China → United States
35%
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
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
Import Tips
• Verify ASME SA-213 certification and material test reports (MTRs) for compliance; ensure marking includes alloy grade and heat number
• Common pitfall: incorrect OD measurement leading to misclassification
• Obtain end-user certificates if required for pressure vessel applications