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Home> Products> Heat Exchanger Tube> U Bend Heat Exchanger Tube> Duplex Steel U Bend Tube ASME SA789 S31500

Duplex Steel U Bend Tube ASME SA789 S31500

Payment Type: L/C,T/T,D/P,Western Union

Transportation: Ocean,Air

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    Product Attributes Supply Ability & Additional Information
    Product Attributes

    Model No.U Bend Tube

    BrandYUHONG

    TypeSeamless

    ApplicationBoiler Pipe

    Section ShapeRound

    UsageThermal Equipment

    TechniqueCold Rolled

    MaterialStainless Steel

    Product Description

    Duplex Stainless Steel U Bend Tube ASME SA789 UNS S31500 is 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.

     

    YUHONG GROUP deal with  Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless  and welded  pipe and tube already more than 25 years, every year sell more than 80000 tons of steel  pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Russia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004. 


    YUHONG GROUP Start to Produce U Bending Tube Since 2006,Up to now already supply more than 

    30000 tons Stainless Steel U Bend Tube to 35 countries.


    USA AMS SA-789/SA-789M SA-789 S31500 Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service and Mechanical Properties, 

    Chemical Element, Cross Reference, Datasheet.

     

    UNS S31500 description: 

    UNS S31500 is a kind of seamless Duplex Stainless Steel Pipe/tube. S31500 is in the American standard .UNS S31500 seamless Alloy Steel Pipe Process is Cold finished or hot finished.

    UNS S31500 Chemical composition as below sheet.

    grade C Mn Si S P Cr Ni Mo
    S31500 0.03 1.30~2.00 0.8 0.030 0.035 18.00~ 19.50 4.50~5.50 2.50~3.0
     
      
    UNS S31500 Mechanical properties:

    Tensile strength  ≥590 MPa
    Yield strength  ≥390 MPa
    Elongation A(%)≥20


    UNS S31500 application:

    UNS S31500 duplex stainless steel has the ferrite to austenite size bipolar organization, good resistance to stress corrosion cracking, pitting corrosion resistance and 00 cr17ni13mo2 quite, has the high strength suitable for the environment of chlorine ion, used in fertilizer, paper making, petroleum, chemical industry and other industrial heat exchanger, condenser, 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.

     

    U-Bend Tubes:

    -TEMA RCB 2.31 Standard Of The Tubular Exchanger Manufacturers 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 Techinical Requirements For Tubes Of Nickel And Nickel Alloy For 

    Condensers And Heat Exchangers.

     

    -Customer Specifications.

    Duplex Stainless Steel U Bend Tube , ASTM A789 S31803 (SAF2205), ASTM A789 S32750 (SAF2507), S32760

     

    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
    Packaging & Delivery
    Selling Units : Long Ton
    Package Type : Plywood Case Packing
    Supply Ability & Additional Information

    PackagingPlywood Case Packing

    Productivity800 Tons Per Month

    TransportationOcean,Air

    Place of OriginChina, USA, Korea, UE

    Payment TypeL/C,T/T,D/P,Western Union

    IncotermFOB,CFR,CIF,EXW

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    If you have any questions our products or services,feel free to reach out to us.Provide unique experiences for everyone involved with a brand.we’ve got preferential price and best-quality products for you.

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    Home> Products> Heat Exchanger Tube> U Bend Heat Exchanger Tube> Duplex Steel U Bend Tube ASME SA789 S31500
    YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2015, ISO 14001, ISO 18001, API 5L , API 5CT , API 6D, And our branch company Zhejiang Yuhongwell Steel Co.Ltd has expanded its field of activities and entered in trade and supply of tubular & flat products in Duxplex and Super Duplex, Stainless Steel, Nickel Base alloy Steel ,Cr-Mo alloy steel , Copper Nickel alloy steel,Carbon Steel for our reputed clients worldwide. These products are widely used in various important sectors like Mining, Energy, Boiler & Heat Exchanger, Petrochemical, Chemical Industry, Food plant, Paper plant, Gas and Fluid Industry etc. YUHONG HOLDING GROUP has gained rich experience in Pipes, Fittings, Flanges, Valves, Structural steel, Coils and Plates in past eight years. In a short span of time, YUHONG brand has marked its global presence in more than 40 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand,...
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