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DELLOK A179 Seamless Carbon Steel Heat Treated U Tube Bundle For Heat Exchanger

A179 seamless carbon steel heat treated heat excha
  • Mobile:+8613761381662
  • Fax:+86 25 69755709
  • Email:commercial@bestfintube.com
Description

A179 seamless carbon steel heat treated heat exchanger U Tube bundles

 

More Standard and Grade:

ASTM A210/ASME SA210 A1

ASTM A213/ASME T11  T22 

A106B/A53B/A179/A192/A200/A333/A335/500
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).

 

Hydrostatic Test After U Bending

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

Medium: Dematerialized Water. 

Compressed Air Cleaning After Hydro-Test.


Packaging 

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 TestConducted only when specially requested by the client
Chemical AnalysisTest done as per required quality standards
Destructive / Mechanical TestingTensile | Hardness | Flattening | Flare | Flange
Reverse-bend and Re. flat testsCarried 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 TestingDone to detect homogeneities in subsurface by using Digital Flaw-mark Testing System
Hydrostatic Testing100% 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 TestTo check any evidence of air leakage
Visual InspectionAfter 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


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