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Duplex Stainless Steel Pipes,Seamless and Welded, ASTM / ASME A789 / SA789, A790 / SA790, A928 , A450, A530

Categories Duplex Stainless Steel Pipes
Place of Origin: China, USA, Korea, UE
Brand Name: YUHONG SPECIAL STEEL
Certification: ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
MOQ: 100KGS
Price: negotiable
Packaging Details: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time: 10days->
Payment Terms: T/T, L/C
Supply Ability: 1500 tons per month
Model Number: ASTM / ASME A789 / SA789, A790 / SA790, A928, A450, A530, A999, E263, E309, E426
Material Grade: S31803(2205), S32750(2507), S32760, S32304, S32101, S31254(254Mo), 235Ma, UNS NO8926, NO8367.
Standard: ASTM A789 , ASTM A790 , ASTM A928
NDT: ET, UT, HT
Application: Mining, Energy, Petrochemical, Chemical Industry Food plant, Paper plant, Gas and Fluid Industry
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    Duplex Stainless Steel Pipes,Seamless and Welded, ASTM / ASME A789 / SA789, A790 / SA790, A928 , A450, A530

    Duplex Stainless Steel Pipes,Seamless and Welded, ASTM / ASME A789 / SA789, A790 / SA790, A928, A450, A530, A999, E263, E309, E426


    YUHONG SPECIAL STEEL 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.


    Standards: ASTM/ASME A789/SA789, A790/SA790,A450,A530

    Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2),

    UNS32760(1.4501)


    Chemical Composition


    Grade

    C

    max

    Si

    max

    Mn

    max

    P

    max

    S

    max

    Cr

    Ni

    Mo

    N

    UNS S32750

    0.030

    0.8

    1.2

    0.030

    0.015

    24.0-26.0

    6.0-8.0

    3.0-5.0

    0.24-0.32

    UNS S31803

    0.030

    1.0

    2.0

    0.020

    0.020

    21.0-23.0

    4.5-6.5

    2.5-3.5

    0.08-0.20

    UNS S31500

    0.030

    1.0

    1.2-2.0

    0.030

    0.030

    18.0-19.0

    4.5-5.5

    2.5-3.5

    0.05-0.10


    Physical Properties


    Grade

    Y.S.MPa min

    T.S.Mpa min

    Elongation %

    Hardness HRC

    UNS S32750

    550

    800

    15

    20

    UNS S31803

    450

    620

    25

    20

    UNS S31500

    440

    630

    30

    20


    Duplex Stainless Steel Pipe Application:


    Chemical processing, Transport and Storage.

    Oil and gas exploration and offshore rigs.

    Oil and gas refining.

    Marine environments.

    Pollution control equipment.

    Pulp and paper manufacturing

    Chemical process Plant


    Some of the quality tests carried out by us includes:

    Corrosion TestConducted only when specially requested by the client
    Chemical AnalysisTest done as per required quality standards
    Destructive / Mechanical TestingTensile | Hardness | Flattening | Flare | Flange
    Reverse-bend and Re. flat testsCarried 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 TestingDone to detect homogeneities in subsurface by using Digital Flaw-mark Testing System
    Hydrostatic Testing100% 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 TestTo check any evidence of air leakage
    Visual InspectionAfter 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

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