Stainless Steel Seamless Pipe ASTM A312 TP321 , A213 TP321, A269
TP321, Pickled and Annealed , Plain End,3" SCH40
1.4541 is the European norm (EN) designation for a stainless steel
grade often referred to as TP321 in various ASTM standards. Let's
break down the specifications and standards associated with this
heat exchanger tube:
ASTM A312: This is an ASTM specification that covers seamless,
welded, and heavily cold worked austenitic stainless steel pipes
for general corrosive service and high-temperature applications.
The A312 standard ensures the manufacturing and material
requirements for the tubes used in various industries, including
heat exchangers.
ASTM A213: Another ASTM specification, A213, covers seamless
ferritic and austenitic alloy-steel boiler, superheater, and heat
exchanger tubes. The A213 standard provides guidelines for seamless
tubes used in high-temperature and corrosive environments.
ASTM A269: The ASTM A269 specification focuses on seamless and
welded austenitic stainless steel tubing for general service. It is
commonly used in applications requiring corrosion resistance and
high-temperature strength. A269 ensures the mechanical and material
properties of the tubes.
TP321: TP321 is the ASTM designation for stainless steel grade
1.4541. It represents a titanium-stabilized austenitic stainless
steel with good corrosion resistance and high-temperature strength.
TP321 is specifically designed to resist intergranular corrosion
after exposure to temperatures in the chromium carbide
precipitation range of 800-1500°F (427-816°C).
The 1.4541 (TP321) heat exchanger tube offers several advantages:
1️⃣ Corrosion Resistance: It provides excellent resistance to
corrosion in various environments, including acidic and
chloride-containing media.
2️⃣ High-Temperature Strength: TP321 exhibits good mechanical
properties at elevated temperatures, making it suitable for
high-temperature applications such as heat exchangers.
3️⃣ Intergranular Corrosion Resistance: The titanium stabilization
in TP321 helps prevent intergranular corrosion, ensuring the
long-term integrity of the tube when exposed to high temperatures.
4️⃣ Weldability: TP321 offers good weldability, allowing for ease
of fabrication and joining processes.
