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ASTM A269 TP316L Stainless Steel Welded Tube Bright Annealed Heat Exchanger Tube

ASTM A269 TP316L Stainless Steel Welded Tube Bright Annealed Heat Exchanger Tube

Markenbezeichnung: YUHONG
Modellnummer: ASTM A269 TP316L geschweißtes Rohr aus Edelstahl
MOQ: 500 kg
Verpackungsdetails: Sperrholzgehäuse/Eisengehäuse/Bündel mit Kunststoffkappe
Zahlungsbedingungen: L/C, T/T
Ausführliche Information
Herkunftsort:
China
Zertifizierung:
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Produktname:
Wärmetauscherrohr
Standard:
ASTM A269, ASME SA269
Material:
TP316/316L
OD:
1/4", 3/8", 1/2", 5/8", 3/4", 1", 1,1/4" usw.
Dicke:
BWG10-25
Länge:
Can Custom
Ende:
Glattes Ende, abgeschrägtes Ende
Hervorheben:
ASTM A269 TP316L geschweißtes Edelstahlrohr, blankgeglühtes Wärmetauscherrohr
Produkt-Beschreibung

ASTM A269 TP316L Stainless Steel Welded Tube Bright Annealed Tube Heat Exchanger Tube 

 

ASTM A269 TP316L bright-annealed welded tube is a high-performance solution for heat exchangers. This specification covers longitudinally welded austenitic tubes with low carbon (≤0.035%) to prevent intergranular corrosion—critical for thermal equipment. Bright annealing in a controlled atmosphere yields a clean, scale-free surface that minimizes fouling, enhances heat transfer, and ensures purity, making the tube ideal for chemical, pharmaceutical, food, and ultra-pure water systems. Although ASTM A269 is a general service standard, its tight tolerances, smooth weld seam, and corrosion resistance offer a cost-effective alternative to seamless tubing when ASME A249 compliance is not required.

 

 

Pressure / Mechanical Integrity

  • Seamless has no weld seam → inherently stronger for high pressure (e.g., > 3000 psi) and cyclic fatigue applications. Preferred for ASME Section VIII, high‑pressure steam, hydraulic lines.

  • Welded (with BA) – after bright annealing, the weld recrystallizes and has properties nearly equal to the base metal. Suitable for low to medium pressure (typically < 1500 psi) and non‑cyclic service.

 

 

Chemical Composition % of ASTM A269 TP316L Stainless Steel Welded Heat Exchanger Tube

Grade UNS Designation C M P S Si Ch Ni Mo
TP316L S31603 0.035 2 0.045 0.03 1 16.0–18.0 10.0–14.0 2.00–3.00

 


Mechanical properties of ASTM A269 TP316L Stainless Steel Welded Heat Exchanger Tube

Grade 
Tensile Str
(MPa) min
Yield Str
0.2% Proof
(MPa) min
Elong
(% in 50mm) min
Hardness
Rockwell B (HR B) max
Brinell (HB) max

 316L

485
170
40
95
217
 

 
Physical Properties of ASTM A269 TP316L Stainless Steel
Welded Heat Exchanger Tube

Grade
Density
(kg/m3)
Elastic Modulus
(GPa)
Mean Co-eff of Thermal Expansion (m/m/0C)
Thermal Conductivity
(W/m.K)
Specific Heat 0-1000C
(J/kg.K)
Elec Resistivity
(nΩ.m)
0-1000C
0-3150C
0-5380C
At 1000C 
At 5000C
316/L

 8000

193
15.9
16.2
17.5
16.3
21.5
500

740

 

 

 

Why Bright Annealed for Heat Exchangers?

For heat exchanger service, surface quality directly impacts performance. The BA finish offers distinct advantages:

  • No Scale or Oxide: Eliminates "chalking" or flaking that could contaminate process fluids or block small tubes.

  • Smoother Surface (Ra ≤ 20 µin typical): Reduces fouling (deposit buildup) and improves heat transfer efficiency compared to pickled or as-welded surfaces.

  • Cleanliness: Ready for high-purity applications (pharma, food, ultra-pure water) without chemical cleaning.

  • Uniform Corrosion Resistance: The weld is fully solution annealed, eliminating galvanic effects between weld and base metal.


Application

  • Shell & Tube Heat Exchangers (condensers, evaporators, chillers)

  • U-tube bundles (BA finish allows bending without cracking)

  • Hydraulic & Instrumentation lines in corrosive environments

  • Pharmaceutical / Biotech (clean steam, WFI systems)

  • Chemical processing (acetic acid, chlorides, sulfites)

 
 

ASTM A269 TP316L Stainless Steel Welded Tube Bright Annealed Heat Exchanger Tube 0
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Alle Bewertungen

S
S*.
Thailand Jan 19.2026
Very professional team, easy to talk to. We had some specific size requirements and they nailed it. The TP304 stainless tube with aluminum fins works like a charm for heat dissipation. Thumbs up!
A
A*a
Morocco Nov 20.2025
The material compliance with ASTM A269 and the use of TP316L grade give us confidence in its durability and safety.
Y
Y*t
Kazakhstan Apr 19.2025
Using these in oil and gas heat exchangers. Checked the material reports and everything is perfect. These extruded tubes have high strength, making installation a breeze. The seller was patient and helped with all our technical questions.