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