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Home> Products> Duplex Stainless Steel Tube> Super Duplex Stainless Steel Seamless Tube> SA789 S32304 Super Duplex Steel Seamless Tube

SA789 S32304 Super Duplex Steel Seamless Tube

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

Transportation: Ocean,Land,Air

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    Product Attributes Supply Ability & Additional Information
    Product Attributes

    Model No.Duplex Tube

    BrandYUHONG

    TypeSeamless

    CertificationBSI

    ApplicationGas Pipe

    Section ShapeRound

    UsageThermal Equipment

    TechniqueCold Drawn

    MaterialStainless Steel

    Product Description

    ASTM A789/A789M / ASME SA789/SA789M UNS S32304 2304 Super Duplex Stainless Steel Seamless Tube for Superheater Application


    Generally, 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: BWG22 = 0.71mm, BWG20 = 0.89mm, BWG18 = 1.24mm, BWG16 = 1.65mm, BWG14 = 2.11mm, BWG12 = 2.77mm, BWG10 = 3.4mm,

    (Average wall thickness and Minimum wall thickness)

    The regular standard is ASTM A789/ASME SA789, this specification covers grades of average wall thicknes, or if customer need minimum wall thickness, it should be specified on the order before order confirmed. 


    Chemical Composition

    The chemical composition of stainless steel grade Duplex 2304 / UNS S32304 is outlined in the following table.

    Element

    Content (%)

    Iron, Fe

    72.679

    Chromium, Cr

    23

    Nickel, Ni

    4

    Molybdenum, Mo

    0.20

    Nitrogen, N

    0.1

    Carbon, C

    0.02

    Sulfur, S

    0.001

    Mechanical Properties

    The mechanical properties of stainless steel grade Duplex 2304 / UNS S32304 are displayed in the following table.

    Properties

    Metric

    Imperial

    Tensile strength

    ≥ 600 MPa

    ≥ 87000 psi

    Yield strength (@strain 0.200 %)

    ≥ 400 MPa

    ≥ 58000 psi

    Modulus of elasticity

    200 GPa

    29000 ksi

    Shear modulus (@temperature 20°C/ 68°F)

    75.0 GPa

    10900 ksi

    Poisson’s ratio

    0.333

    0.333

    Elongation at break

    ≥ 25 %

    ≥ 25 %

    Hardness, Rockwell C

    ≤ 20.0

    ≤ 20.0

    Hardness, Brinell

    180 - 230

    180 - 230

    Applications

    Stainless steel grade Duplex 2304 / UNS S32304 is widely used in various kinds of industries including pulp and paper, coal handling, potash, food and beverage, and waste water.

    The specific applications are as follows:

    1.Bridges

    2.Storage tanks

    3.Water heaters

    4.Heat exchangers

    5.Pressure vessels

    6.Feed water tubes

    7.Heat exchangers

    8.Flue-gas cleaning

    9.Seawater systems

    10.Desalination plants

    11.Parts for structural design

    12.Rotors, impellers and shafts

    13.Firewalls and blast walls on offshore platforms

    14.Cargo tanks and pipe systems in chemical tankers

    15.Piping and instrumentation tubing for general service

    Standard : ASTM/ASME A/SA789, A/SA790, A/SA928, DIN17456/17458, EN10216-5.

    We supply tubes according to the customers' requirement.

    Material Grade : UNS S31803, S32205, S32101, S32304, S32750, S32760, 1.4462, 1.4410 etc...

    Size Range:

    Stainless Steel Seamless Tube

    ASTM A789/A789M: OD: Φ12.7mm-Φ203mm; WT:0.5mm-6.35mm

    Stainless Steel Seamless Pipe

    ASTM A790/A790M: OD: Φ6mm-Φ325mm; WT:0.5mm-30mm

    Stainless Steel Welded Tube

    ASTM A789/A789M: OD: Φ12.7mm-Φ203mm; WT:0.5mm-4.0mm

    Stainless Steel Welded Pipe

    ASTM A790/A790M: OD: Φ10mm-Φ2000mm; WT:0.5mm-40mm (OD≤630mm for single seam; OD>Φ630mm For circumferential seam)

    ASTM A928/A928M: OD: Φ10mm-Φ406mm; WT:0.5mm-10mm

    Mechanical Property:

    UNS


    Tensile Strength 
    Min, Mpa



    Yield Strength 
    Min, Mpa


    Elongation in 2 in Or 50mm Min, %


    Hardness Max, 
    HRC


    S31803

    620

    450

    25

    30

    S32205

    655

    485

    25

    30

    S32101

    700

    530

    30

    30

    S32304

    690

    450

    25

    30

    S32750

    800

    550

    15

    32

    S32760

    750

    550

    25

    32

     

    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

     

    Detailed Production Process

    Seamless Pipe Production Flow Chart: Stainless Steel Bar-> Inspection-> Peeling-> Cut-Center-> Heating-> Piercing-> Inspection/Polishing-> Pickling - Cold Rolling/Drawing-> Pickling-> Solution Annealing-> Straightening-> Cutting-> Bright&Annealing/Pickling Passivating-> Composition Inspect-> Marking-> Packing-> Storing-> Shiping.


    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. 

    If you have any inquires, please freely contact me. 

    Email: luis.bao@ steelseamlesstube.com

     

    Packaging & Delivery
    Package Type : Plywood Case /Iron Case/ In Bundles Packing
    Supply Ability & Additional Information

    PackagingPlywood Case /Iron Case/ In Bundles Packing

    TransportationOcean,Land,Air

    Place of OriginChina

    Supply Ability800 Ton / Month

    CertificateABS, GL, DNV, NK, PED, AD2000, GOST 9941

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

    IncotermFOB,CFR,CIF,EXW,FCA

    GET IN TOUCH

    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> Duplex Stainless Steel Tube> Super Duplex Stainless Steel Seamless Tube> SA789 S32304 Super Duplex Steel Seamless Tube
    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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