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ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
Specifications
Brand Name :
YUHONG
Model Number :
ASTM A213 TP321 Stainless Steel Seamless U Bend Tube
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1000kgs
Payment Terms :
L/C,T/T
Delivery Time :
7 DAYS
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product Name :
Stainless Steel Seamless Tube
Standard :
ASTM A213, ASME SA213
Material :
TP321H / UNS S32109 / 1.4878
OD :
1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc.
Thickness :
BWG10-25
Length :
Single Random, Double Random & Cut Length
End :
Plain End, Beveled End
High Light :
ASTM A213 TP321H Stainless Steel Seamless Tube, Bright Annealed Heat Exchanger Tube
Description

ASTM A213 TP321H / UNS S32109 Stainless Steel Seamless Tube BA Bright Annealed Tube

According to ASTM A213, the final heat treatment for TP321H must be a solution anneal (thermal stabilization) at a temperature of at least 1100°C (2012°F) , followed by a rapid quench (usually water quench or rapid air cool depending on section size). This ensures the Titanium carbides are dissolved and the material is fully austenitic.

TP321H is a "stabilized" stainless steel. It contains Titanium (Ti) at least five times the carbon content.

  • Why Stabilized? In standard 304/316 stainless steel, when heated to high temperatures (800°F - 1500°F / 427°C - 816°C), carbon can combine with chromium to form chromium carbide at the grain boundaries (sensitization). This reduces corrosion resistance.

  • The "H" Difference: The Titanium in this alloy has a higher affinity for carbon than chromium does. It forms Titanium carbides instead, leaving the chromium in solid solution to maintain corrosion resistance.

Equivalent Grade of ASTM A213 TP321H / UNS S32109 / 1.4878 Stainless Steel Seamless Tube

GRADE UNS GB JIS ISO DIN/EN GOST
ISC NEW
321H S32109 S32169 07Cr19Ni10Ti SUS321HTP X10CrNiTi18-10 1.4878 12X18H10T

Chemical Composition (%) of ASTM A213 TP321H / UNS S32109 / 1.4878 Stainless Steel Seamless Tube

C Mn P S Si Cr Ni Ti
0.04-0.10 2.00 0.045 0.03 1.00 17.0-19.0 9.0-12.0 4(C+N)-0.7max

Mechanical Properties of ASTM A213 TP321H / UNS S32109 / 1.4878 Stainless Steel Seamless Tube

Tensile Strength min. Yield Strength min. Elongation (%) Hardness max
75ksi (515MPa) 30ksi (205MPa) 35min 192HBW/200HV 90 HRB

321H, Key Advantages of the "H" Grade

  • High-Temperature Strength: The controlled higher carbon content provides superior creep strength and stress rupture properties above 1000°F (537°C) compared to standard TP321.

  • Aqueous Corrosion Resistance: Similar to TP304 in most environments, but stabilized against intergranular corrosion after welding or high-temperature exposure.

  • Oxidation Resistance: Resists scaling up to about 1650°F (900°C) in continuous service.

Application
  • Petrochemical Refining: Fluid catalytic cracking units, reformers, and hydrogen plants.
  • Power Generation: Superheaters and reheaters in boilers.
  • Aerospace: Exhaust stacks and manifolds.
  • Chemical Processing: High-temperature process piping where sensitization is a concern during shutdowns or startups.
  • Heat Exchanger
  • Boiler

ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
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ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM A213 TP321 Stainless Steel Seamless U Bend Tube
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1000kgs
Payment Terms :
L/C,T/T
Contact Supplier
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube
ASTM A213 TP321H / EN 1.4878 Stainless Steel Seamless Tube Bright Annealed Heat Exchanger Tube

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
3 Years
ningbo
Since 1990
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Heat Exchanger Tube, Studded Tube, Duplex Stainless Steel Heat Exchanger Tube
Total Annual :
50M-70M
Employee Number :
50~800
Certification Level :
Verified Supplier
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