U BEND TUBES 317

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U Bend 317 Tubes Suppliers And Exporter of Quality U Bend 317 Tubes.

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Seamless Stainless Steel U Bend Tube, 317 Bending Tubing for Heat Exchanger, Stainless Steel U Bend Tube

U bend tube 317 are made in our plant according to the client prerequisites. Twist can be Heat Treated as per Client's Requirements trailed by hydrostatic testing and color penetrant testing if needed. U bend tubes 317 are generally utilized as a part of warmth exchanger systems. Heat exchanger hardware on the premise of consistent stainless U-tubes is crucial in deliberately vital and basic fields-atomic and petro-substance machine building.

U tube heat exchangers Designed for high temperature applications, especially for steam gathering or hot oil systems. This model is chosen when differential development makes a settled tube sheet exchanger inadmissible and when conditions block a skimming head type (HPF) determination.

Standards ASME A789, ASME SA213 TP317, TP317L
O.D 12.7mm---38.1mm
WT 0.89~2.77mm
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)
Heat Treatment Stress Relieved After U-Bending (Bending Area Plus 300MM For Each Leg).


The U-Bend Tube Comply With The Following Standards :

1. ASTM A688/ASME SA688

2. ASTM A803/ASME SA803

3. ASTM A556/ASME SA556

U - Bend Tubes:

• TEMA RCB 2.31 Standard Of the Tubular Exchanger Exporters Association (9th Edition).

• 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 Technical Requirements for Tubes of Nickel and Nickel Alloy For Condensers and Heat Exchangers.

Product Details :

Name Welded Stainless Steel U - Bend Tube
Standard ASTM, GB, JIS, DIN, EN, AISI
Material Grade TP304/TP304L /TP316/ TP316L /TP316Ti /TP347/ TP347H / TP321/ TP321H/TP310S/TP310H/TP904L
2132 /2507/2520/2205
S31803, S32205 S32750 S32760 S32304 S32101
Outer Diameter 1.5*OD 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)
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.
Thickness Seamless Pipe: 1mm - 8mm; SCH 5/5S/10S/40s
Tolerance According to the Standard.
Manufacturing Process Cold Drawn, Bright Annealed, Pickling
Test UT, ET, HT, RT, Etc. and others according to the standard, or as the requests of the customers
Certificate ISO 9001, etc.


Applications :

• Papermaking,

• Shipbuilding,

• Chemical industry,

• Electricity,

• Petroleum,

• Food,

• Pharmacy,

• Metallurgy,

• Natural gas,

• Architecture,

• Environmental,

• Sewage Disposal,

• protection,

• aerospace & heat exchanger

Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
317L 0.035 max 2 max 1 max 0.040 max 0.03 max 18 – 20 3 – 4 11 – 15 -