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Payment Type: L/C,T/T,D/P,Money Gram,Western Union
Transportation: Ocean,Land,Air
Model No.: U Bend Tube
Brand: YUHONG
Type: Seamless
Certification: BSI
Application: Gas Pipe
Section Shape: Round
Usage: Thermal Equipment
Technique: Cold Drawn
Material: Stainless Steel
ASTM A269/ASME SA269 1.4404 Stainless Steel U Bend Tubing For Oil and Gas Appliation etc. With Cold Drawn and Cold Rolled Finsh
At present U Bend Tube are widely used in Heat Exchanger Systems. Heat-Exchanger Equipments 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. Yuhong Group start to produce U Bend Heat Exchanger Tube Since 2006, now every year we can supply more than 6000 tons of Stainless Steel U Bend Tubes to 50 countries in the world.
The regular sizes we export as below:
O.D: 1/2" = 12.7mm, 5/8" = 15.88mm. 3/4" = 19.05mm, 1" = 25.4mm, 1-1/4" = 31.75mm, 1-1/2" = 38.1mm
W.T: 22 BWG = 0.71mm, 20 BWG = 0.89mm, 18 BWG = 1.24mm, 16 BWG = 1.65mm, 14 BWG = 2.11mm, 12 BWG = 2.77mm, 10 BWG = 3.4mm,
(Average wall thickness and Minimum wall thickness)
Steel Grade:
| Ferrite and Martensitic | Austenite | Duplex steel | Super Duplex steel | Nickel Alloys | Titanium |
| TP410 TP405 S44400 S44660 TP430 | TP304/304L TP316/316L TP316Ti TP317/317L TP321/TP321H TP310S TP347/TP347H | UNS S31803 UNS S32205 UNS S32304 | UNS S32750 UNS S32760 UNS S31500 | UNS N06600 UNS N06601 UNS N06625 UNS N08020 UNS N00880 UNS N08825 UNS N08904 | Gr.2 Gr.7 |
Note: The other Alloys materials and steel grades can be produced upon agreement by customers.
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 bend Tube.
Any extra requirements could be indicated by customers before order comfirmed.
Also Yuhong Group will give our customers the most professional technical support as well as after-sales service etc.
The standards of U Bend Heat Exchanger Tube as below:
- TEMA RCB 2.31 Standard Of The Tubular Exchanger Manufacturers Association
- ASTM A688/ASME SA688 Standard Specification For Welded Tubes Of Austenitic Corrosion Resistant Steel Grade Designed For Feed Water Boilers.
- ASTM B163/ASME SA163 Standard Techinical Requirements For Tubes Of Nickel And Nickel Alloy For Condensers And Heat Exchangers.
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 Sizes are available upon agreement between customers and us.
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. Yuhong Group as the most manufacturer of U Bend Heat Exchanger Tube in China, we will provide our customers the best & stable packing to avoid any demages during the long distance transportation. All the customers will be satisfied with our products quality & service.
Stainless Steel U Bend Tube Comply With The Following Standards:
1. ASTM A688/ASME SA688
2. ASTM A803/ASME SA803
3. ASTM A556/ASME SA556
Below quality tests will be carried out by us:
| 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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| Package Type | : | Plywood Case /Iron Case/ In Bundles Packing |
|---|
Packaging: Plywood Case /Iron Case/ In Bundles Packing
Transportation: Ocean,Land,Air
Place of Origin: China
Supply Ability: 800 Ton / Month
Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST 9941
Payment Type: L/C,T/T,D/P,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.