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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

Nazwa marki: YUHONG
Numer modelu: ASTM A269 TP316L Rurka spawana ze stali nierdzewnej
MOQ: 500kg
Szczegóły opakowania: Sklejkowa skrzynka drewniana / żelazna skrzynka / pakiet z plastikową nasadką
Warunki płatności: L/C, T/T
Szczegółowe informacje
Miejsce pochodzenia:
Chiny
Orzecznictwo:
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Nazwa produktu:
Rura wymiennika ciepła
Standard:
ASTM A269, ASME SA269
Tworzywo:
TP316/316L
OD:
1/4", 3/8", 1/2", 5/8", 3/4", 1", 1,1/4" itp.
Grubość:
BWG10-25
Długość:
może niestandardowe
Koniec:
Zwykły koniec, skośny koniec
Podkreślić:
Rury spawane ze stali nierdzewnej ASTM A269 TP316L, jasne wyżarzane rury wymiennika ciepła
Opis produktu

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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Wszystkie recenzje

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.