duplex pipe S31803 ,S32205,S32520 ASTM A789,ASTM A790

Short Description:

Duplex stainless steel pipes are becoming more and more common. Due to its excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion, duplex stainless steel pipe are being offered by all the major stainless steel mills.   Specification Size OD: 6.0 ~ 406.4mm; WT: 1 ~ 50mm; O.D.1/8”-16”;W.T.:SCH 10(S);-SCH XXS Length: as your requirement,11.8M MAX Process Seamless Grade  S31803,  S32205, S32520,S32750,S3276...


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  • Product Detail

    Product Tags

    Duplex stainless steel pipes are becoming more and more common. Due to its excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion, duplex stainless steel pipe are being offered by all the major stainless steel mills.

     

    Specification

    Size OD: 6.0 ~ 406.4mm; WT: 1 ~ 50mm;

    O.D.1/8”-16”;W.T.:SCH 10(S);-SCH XXS

    Length: as your requirement,11.8M MAX

    Process Seamless
    Grade  S31803,  S32205, S32520,S32750,S32760
    Standard ASTM A789, ASTM A790
    Surface Aid Pickling, Polishing(180#, 220#, 240#, 320#, 400#,)
    Theoretical Weight(kg/m) Weight/meter = (OD-WT)*WT*0.02507    Both OD and WT in mm.

     

    Note:
    OD is the specified outside diameter.
    WT is the specified wall thickness

     

    Chemical Composition

    UNS

    C

    Mn

    P

    S

    Si

    Ni

    Cr

    Mo

    N

    Cu

    Others

    S31803

    0.030

    2.00

    0.030

    0.020

    1.00

    4.5-6.5

    21.0-23.0

    2.5-3.5

    0.08-0.20

    S32205

    0.030

    2.00

    0.030

    0.020

    1.00

    4.5-6.5

    22.0-23.0

    3.0-3.5

    0.14-0.20

    S32520

    0.030

    1.50

    0.035

    0.020

    0.80

    5.5-8.0

    24.0-26.0

    3.0-5.0

    0.20-0.356

    0.5-3.00

    S32750

    0.030

    1.20

    0.035

    0.020

    0.80

    6.0-8.0

    24.0-26.0

    3.0-5.0

    0.24-0.32

    0.5

    S32760

    0.05

    1.00

    0.030

    0.010

    1.00

    6.0-8.0

    24.0-26.0

    3.0-4.0

    0.20-0.30

    0.50-1.00

    W0.50-1.00

    Note A: Maximum, unless a range or minimum is indicated. Where ellipses(…) appear in this table, there is no minimum and analysis for the element need not to be determined or reported.

     

    Tensile and Hardness

    UNS Designation

    Tensile Strength, min MPa

    Yield Strength, min MPa

    Elongation in 50mm min, %

    Hardness, Max

           

    HBW

    HRC

    S31803

    620

    450

    25

    290

    30

    S32205

    655

    450

    25

    290

    30

    S32520

    770

    550

    25

    310

    S32750

    800

    550

    15

    300

    32

    S32760

    750

    550

    25

    300

     

    Tolerances

    Group

    Size, Outside Diameter, mm

    Tolerances in Outside Diameter, mm

    Average Wall Tolerance in Wall Thickness, %

    Minimum Wall Tolerances in Wall Thickness, %

    Tolerances in Cut Length, mm

    Thin Wall Tubes

    Over

    Under

    Over

    Under

    1

    Up to 12.7, excl

    ±0.13

    ±15

    30

    0

    3

    0

    2

    12.7 to 38.0, excl

    ±0.13

    ±10

    20

    0

    3

    0

    Less than 1.6mm specified

    3

    38.1 to 88.9, excl

    ±0.25

    ±10

    20

    0

    5

    0

    Less than 2.4mm specified

    4

    88.9 to 139.7, excl

    ±0.38

    ±10

    20

    0

    5

    0

    Less than 3.8mm specified

    5

    139.7 to 203.2, excl

    ±0.76

    ±10

    20

    0

    5

    0

    Less than 3.8mm specified

     

    Packing Information
    BUNDLE PACKAGE

    WOODEN CASE

    PLASTIC PACKAGE


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