Stainless Steel Seamless ASTM A213 / ASME SA213 Grade TP304 U Bend Tube For Heat Exchange
Yuhong Group supply Boiler tube , Heat Exchange Tube, Air Cooling Tube ,
Condenser Tube more than 32 years , and our material grade contain
Stainless Steel , Duplex Steel , Super Duplex Steel , Hastelloy ,
Monel , Inconel , Incoloy , Cr-Mo alloy , Copper alloy steel , and
very year sell more than 80000 tons pipes and tubes to our client
projects. And up to now we already export more than 55 countries.
The pipe and tube was width used in Mining, Energy, Petrochemical,
Chemical Industry, Food plant, Paper plant, Gas and Fluid Industry
etc.
Technical Requirements
Straight Tubes Standard Specification For Bending:
ASME SA 213; ASME SB 163; ASME A789, ASME SA268, ASME SA269, etc.
Marking: Before Bending By Marking Machine All Over The Tube Length (Bent
Section After Heat
Treatment Without Marking)
Note: Marking is also possible After Bending On The Straight Parts Of
U-Bending Tube.
Material Grades
American Standard | Austenitic Steel:
TP304,TP304L,TP304H, TP304N, TP310S,TP316,TP316L,TP316Ti,TP316H,
TP317,TP317L, TP321, TP321H,TP347, TP347H,904L…
Duplex Steel :
S32101,S32205,S31803,S32304,S32750, S32760
Others:TP405,TP409, TP410, TP430, TP439,... |
Europen Standard | 1.4301,1.4307,1.4948,1.4541,1.4878,1.4550,1.4401,1.4404,1.4571,1.4438,
1.4841,1.4845,1.4539,1.4162, 1.4462, 1.4362, 1.4410, 1.4501 |
GOST Standard | 08Х17Т,08Х13,12Х13,12Х17,15Х25Т,04Х18Н10,08Х20Н14С2,
08Х18Н12Б,10Х17Н13М2Т,10Х23Н18,08Х18Н10,08Х18Н10Т,
08Х18Н12Т,08Х17Н15М3Т,12Х18Н10Т,12Х18Н12Т,12Х18Н9, 17Х18Н9,
08Х22Н6Т, 06ХН28МДТ |
Final Finishing
Solution Annealed & Pickled
Customer Specifications
Bending Radius: From 1.5*OD(Outside Diameter) To 1500mm
When Ordering Tubes With Radius less or equal to 1.5*OD, It Is
Necessary To Agree Precision Of Geometrics.
Straight Tubes Maximum Length:(Before Bending): 35000 mm.
Leg Length: Min 1 Meter, Max. 16500 mm (For Max R=1500mm)
Note: Other Size Are Available Upon Agreement.
Heat Treatment: Stress Relieved After U-Bending (Bending Area Plus 300MM For Each
Leg).
Hydrostatic Test After U Bending: Maximum Test Pressure 600 Bar, Soaking 10 Sec. With
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.
Some of the quality tests carried out by us includes
| 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
|
Applications
U-Bend Tube are widely used in Heat Exchanger Systems.
Heat-Exchanger Equipment on the basis of
Seamless Stainless U-Tubes and Welded Stainless U bend Tube is
essential in strategically important and
critical felds---Nuclear And Petrochemical Machine Building.
