• New Zealand
    Reliance has looked after us really well , and most because of your good service and products quality.
  • Lebanon
    You did show a full professional way of doing business industrial deal. Im very happy that i have the opportunity to cooperate with u and ur company.
  • Mexico
    Quick response,good price, excellent delivery date and service, of course, the best quality.
Contact Person : Jennifer
Phone Number : +86-1381 2020 947
WhatsApp : +8613812020947

A179 Seamless Carbon Steel Heat Treated Tube For Heat Exchanger

Place of Origin China
Brand Name Reliance
Certification CE,ISO...
Model Number U Tube
Minimum Order Quantity N/A
Packaging Details Solid fumigated wooden box with tube location racks inside.
Delivery Time Ex-work within 1 month on receipt of order.
Payment Terms T/T, L/C
Product Details
Company Type Manufacturer, Importer & Exporter Fin Tube Type U Tube
Process Cold Bend Tube Material Carbon Steel, Stainless Steel, Alloy Steel, Copper Etc...
Heat Treatment YES Tube Length No Limit
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Product Description

A179 seamless carbon steel heat treated heat exchanger U Tube bundles


More Standard and Grade:


ASTM A213/ASME T11  T22 

ASME SA106B/A53B/A192/A200/A333/A335/500
BS3059  BS6323-4  BS3602-1
EN10297-1    EN10305-1   EN10216-1   EN10216-2    EN10210-1
DIN1629   DIN1630  DIN 17175 DIN2391   DIN17204      DIN2448  
JIS G3452(SGP)   JIS G3461JIS G3462  JIS G3454JIS G3455  JIS G3444 


Tube Type:

Seamless (Cold Drawn) 


Both Ends:

Plain ends or bevel ends 


Straight Tubes Maximum Length:

(Before Bending): 35000 mm.


Unit  Leg Length

Min 1 Meter, Max. 16500 mm (For Max R=1500mm)


Heat Treatment

Stress Relieved After U-Bending (Bending Area Plus 300MM For Each Leg).


A179 Seamless Carbon Steel Heat Treated  Tube  For Heat Exchanger 0


Hydrostatic Test After U Bending

Maximum Test Pressure 600 Bar, Holding time: 10 Sec. 

Medium: Dematerialized Water. 

Compressed Air Cleaning After Hydro-Test.



In Strong Transport-Worthy Pre-fumigated wooden boxes of corresponding dimensions for 

each tube Length, Radius, Diameter, According To PO requirements as well as wrapped In polyethylene 

films With soft plastic caps on both end of Tube.


General Quality Tests

Corrosion Test Conducted only when specially requested by the client
Chemical Analysis Test done as per required quality standards
Destructive / Mechanical Testing Tensile | Hardness | Flattening | Flare | Flange
Reverse-bend and Re. flat tests Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end
Eddy Current Testing Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System
Hydrostatic Testing 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s .
Air Under Pressure Test To check any evidence of air leakage
Visual Inspection After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections

Supplementary Testing : Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include:

  • Eddy Current Testing
  • O.P Testing
  • Radiography Testing
  • Corrosion Testing
  • Micro Testing
  • Macro Testing
  • IGC Testing
  • Ultrasonic testing
  • Liquid Penetrate testing

A179 Seamless Carbon Steel Heat Treated  Tube  For Heat Exchanger 1