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Yuhong Group Co.,Ltd

  • China,Ningbo ,Zhejiang
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China A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger /
China A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger /

  1. China A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger /
  2. China A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger /
  3. China A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger /
  4. China A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger /

A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger /

  1. MOQ: 300KGS
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms T/T, L/C AT SIGHT
Supply Ability 100 tons per month
Delivery Time Depending on QTY
Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Standard ASTM A249 / ASME SA249
Outside diameter 3.2 mm ~ 304.8 mm (1/8" ~ 12")
Wall thickness 0.4 mm ~ 8.1 mm (0.015" ~ 0.320")
Length Fixed length 6m/12m, or as required
Manufacturing process high-frequency resistance welding
Surface condition Bright annealing (BA), 2B, polishing, acid pickling passivation (AP)
Non destructive testing 100% RT (X-ray), water/air pressure test
Application Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Brand Name YUHONG
Model Number A249/SA249 TP316L
Certification PED, EAC, ISO 9001, TS etc...
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T, L/C AT SIGHT Supply Ability 100 tons per month
Delivery Time Depending on QTY Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Standard ASTM A249 / ASME SA249 Outside diameter 3.2 mm ~ 304.8 mm (1/8" ~ 12")
Wall thickness 0.4 mm ~ 8.1 mm (0.015" ~ 0.320") Length Fixed length 6m/12m, or as required
Manufacturing process high-frequency resistance welding Surface condition Bright annealing (BA), 2B, polishing, acid pickling passivation (AP)
Non destructive testing 100% RT (X-ray), water/air pressure test Application Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Brand Name YUHONG Model Number A249/SA249 TP316L
Certification PED, EAC, ISO 9001, TS etc... Place of Origin China
High Light TP316 Stainless Steel Welded TubeASME SA249 Stainless Steel Welded TubeASTM SS Welded Tube

A249 TP316L Stainless Steel Welded Tube Bright Annealed, for Heat Exchanger / Boiler / Condenser

 

 

 

ASTM A249 TP316L Bright Annealed (BA) Welded Tube is a precision welded austenitic stainless steel tube, manufactured to the ASTM A249 standard for boiler, superheater, heat exchanger, and condenser service.

 
  1. Material: TP316L (low-carbon, 16Cr-12Ni-2Mo) — superior pitting/crevice corrosion resistance vs. 304, excellent post-weld intergranular corrosion resistance.
  2. Finish: Bright Annealed (BA) — produced in a controlled protective atmosphere, yielding a smooth, bright, oxide-free inner/outer surface.
  3. Key Advantages:
  • Clean, low surface roughness → maximizes heat transfer efficiency
  • Reduces fouling/residue buildup; easy to clean
  • High dimensional accuracy & consistent weld quality
  • Resists chloride, chemical, and high-temperature corrosion

 

Dimension and Tolerance

 

1. Conventional size range:

The outer diameter range typically provided is 3.2mm to 127mm, and the wall thickness range is 0.4mm to 8.1mm. Sizes beyond this range can also be customized through negotiation.

 

2. Typical tolerances:

  • Outer diameter: usually ranging from ± 0.1mm to ± 0.38mm, depending on the specific size.
  • Wall thickness: usually ± 10%.

 

3. Supply length: straight or coiled pipe (U-shaped pipe, coiled pipe, etc.).

 

 

Manufacturing and process requirements

 

  • Welding process: Automatic welding process is adopted, usually without adding filler metal (self welding), to ensure that the weld performance is close to the base metal.
  • Heat treatment: The finished pipe must undergo solution annealing treatment.
  • Temperature: Usually requires heating to above 1040 ° C and rapid cooling (such as water quenching or air cooling).
  • Purpose: To eliminate welding stress, restore corrosion resistance, and ensure uniform organization.
  • Surface treatment: Bright annealed (BA) tubes can be provided, with a surface roughness of Ra ≤ 0.5 μ m (inner wall), suitable for applications with extremely high cleanliness requirements.

 

 

Equivalent Grades of A249 TP316L

 

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
TP316L 1.4404 / 1.4435 S31603 SUS 316L 316S11 / 316S13 03Ch17N14M3 / 03Ch17N14M2 Z3CND17‐11‐02 / Z3CND18‐14‐03 X2CrNiMo17-12-2 / X2CrNiMo18-14-3

 

 

Chemical Composition of A249 TP316L Stainless Steel Welded Tube

 

Grade C Mn Si P S Cr Mo Ni N
TP316L min.
max.
-
0.03
-
2.0
-
0.75
-
0.045
-
0.03
16.0
18.0
2.00
3.00
10.0
14.0
-
0.10

 

 

Mechanical Properties of A249 TP316L Stainless Steel Welded Tube

 

Grade Tensile Strength (MPa) min ield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
TP316L 485 170 40 95 217

 

 

Physical Properties of A249 TP316L Stainless Steel Welded Tube

 

Grade Density
(kg/m3)
Elastic Modulus
(GPa)
Mean Co-eff of Thermal Expansion (µm/m/°C) Thermal Conductivity
(W/m.K)
Specific Heat 0-100°C
(J/kg.K)
Elec Resistivity
(nΩ.m)
0-100°C 0-315°C 0-538°C At 100°C At 500°C
TP316L 8000 193 15.9 16.2 17.5 16.3 21.5 500

7

 

 

 

Applications of A249 TP316L Stainless Steel Welded Tube

  • Boiler and superheater (working under high temperature and high pressure);

  • Heat exchanger (core component of shell and tube heat exchanger);

  • Condenser (commonly used in power plants, ships, and chemical plants);

  • Fluid transportation pipelines in the petrochemical, food processing, and pharmaceutical industries.

 

 

Company Details

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,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    2007

  • Total Annual:

    50M-70M

  • Employee Number:

    50~850

  • Ecer Certification:

    Verified Supplier

  Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...   Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...

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  • Reach Us
  • Yuhong Group Co.,Ltd
  • 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
  • https://www.steelseamlesspipe.com/

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