ASTM A213 TP321(1.4541) Seamless Cold Drawn Exchanger Tube
TP321 (often referred to simply as 321 or 1.4541 according to the European EN standard) is a grade of austenitic stainless steel. Its defining characteristic is the addition of Titanium (Ti), which makes it "stabilized" and highly resistant to a specific type of corrosion called sensitization.
It is a critical material in power generation, aerospace, and chemical industries, filling the gap between low-cost TP304 and high-temperature TP347. Its performance is directly tied to its titanium content and strict adherence to standard chemical/compositional controls, making it a reliable choice for harsh service conditions.
ASTM A213 TP321 Seamless Cold Drawn Exchanger Tube is a high-performance, precision-engineered tubular product designed specifically for use in high-temperature and corrosive environments, most commonly in heat exchangers, superheaters, and boilers.
Chemical Composition
|
TP321 Chemical Composition(%)
|
|
Element
|
C
|
Si
|
Cr
|
Mn
|
P
|
Ni
|
Ti
|
|
Range
|
≤0.080
|
≤0.75
|
17.00-20.00
|
≤2.00
|
≤ 0.045
|
9.00-13.00
|
≥5*C
|
Mechanical Properties
|
TP321 Mechanical Properties
|
|
Tensile Strength
|
Yield Strength
|
Hardness
|
Elongation
|
|
515MPa
|
≥205MPa
|
≤ 192HB
|
≥40%
|
Equivalent Material of TP321
|
ASTM/AISI
|
UNS NO
|
EN
|
ISO
|
JIS
|
GOST
|
|
TP321
|
UNS32100
|
1.4541
|
X6CrNiTi18-10
|
SUS321
|
08X18H10T
|
TP321vs. TP304 and 321H
TP321 vs. TP304: 304 is more cost-effective and general-purpose but is not recommended for applications within the sensitization temperature range(450°C to 850°C) or where welded assemblies will face corrosive conditions. TP321 offers superior resistance due to its titanium stabilization.
TP321 vs. TP321H: TP321H is the high-carbon (C: 0.04-0.10%) version of TP321. The "H" denotes high-temperature service. It guarantees higher elevated temperature strength while maintaining resistance to intergranular corrosion. It is the specified material for ASME-code high-temperature pressure components. Standard TP321 prioritizes corrosion resistance.
Application of ASTM A213 TP321(1.4541) Seamless Cold Drawn Exchanger Tube
1. Power industry: Superheater and reheater tubes of power plant boilers (capable of coping with steam temperatures exceeding 600℃);
2. Petrochemical and chemical industries: Cracking furnace tubes and heat exchanger tubes (used to handle high-temperature corrosive process fluids);
3. Heat exchange equipment field: Various high-temperature heat exchangers and condensers (especially suitable for working conditions with the risk of intergranular corrosion);
4. Others: Key components of high-temperature pressure-bearing equipment (such as high-temperature pressure vessels, etc.).
আপনার বার্তাটি 20-3,000 টির মধ্যে হতে হবে!
