ASTM A213 TP321H Stainless Steel Seamless Tube For Boiler And Heat Exchanger

​​ASTM A213 is a standard established by the American Society for Testing and Materials (ASTM) for seamless ferritic and austenitic alloy steel pipes used in boilers, superheaters, and heat exchangers.​​

​​ASTM A213 TP321 seamless pipes supplied by GNEE are manufactured by extruding hot billets using a metal-grade process. This method ensures the pipes are seamless or weld-free, delivering exceptional load-bearing capacity under various environmental conditions. The ASTM A213 TP321 stainless steel heat exchange pipes can be produced through hot rolling or cold rolling, followed by subsequent heat treatment. Typically, to achieve a bright surface, the pipes are annealed in a high-vacuum furnace or protective atmospheres such as hydrogen or argon, then subjected to water quenching to enhance their corrosion resistance. Finally, the pipes undergo finishing and inspection processes, including straightening, cutting, non-destructive testing, and hydrostatic testing.​​

​​If you have any questions about our products, specific requirements, or customized solutions, you are welcome to visit us or contact us for more information.​​​​Email: info@gneestainless.com​

ASTM A213 TP321 stainless steel condenser pipes are commonly used in expansion joints, heat exchangers, furnace components, aircraft exhaust manifolds, bellows, and other critical application fields.​

What's the difference between ASTM A213 TP321H and TP321?

321 stainless steel pipe has a lower carbon content (≤0.08%) and no minimum carbon content requirement. It prioritizes intergranular corrosion resistance but doesn't guarantee high-temperature strength. Therefore, it cannot directly replace TP321H for high-temperature, pressure-containing components compliant with ASME standards.