ASTM B626 - 17a

    Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Tube

    Active Standard ASTM B626 | Developed by Subcommittee: B02.07

    Book of Standards Volume: 02.04


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    Abstract

    This specification covers welded tubes made from nickel and nickel-cobalt alloys with UNS Nos. N10001, N10242, N10665, N12160, N10629, N10624, N10675, N10276, N06455, N06007, N06975, N08320, N06985, N06002, N06022, N06030, N06035, N06058, N06059, N06200, N06210, N08031, R30556, N06230, N06686, and R20033. These alloys are intended for heat exchanger and condenser tubes and tubes for general corrosive service for heat-resisting applications. The tubes shall be made from flat-rolled alloy by an automatic welding process with no addition of filler metal, and shall be furnished in the solution annealed and descaled conditions. Materials shall adhere to mechanical (tensile strength, yield strength, and elongation), chemical composition, flattening test, flange test, hydrostatic test, pneumatic test, and eddy current test requirements.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers welded tubes made from the nickel and nickel-cobalt alloys (UNS N10001, UNS N10242, UNS N10665, UNS N12160, UNS N10629, UNS N10624, UNS N10675, UNS N10276, UNS N06455, UNS N06007, UNS N06975, UNS N08320, UNS N06985, UNS N06002, UNS N06022, UNS N06030, UNS N06035, UNS N06044, UNS N06058, UNS N06059, UNS N06200, UNS N06617, UNS N10362, UNS N06210, UNS N08031, UNS N08034, UNS R30556, UNS N06230, UNS N06686, and UNS R20033)2 listed in Table 1 intended for heat exchanger and condenser tubes and tubes for general corrosive service for heat-resisting applications.

    TABLE 1 Chemical Requirements

    Composition Limits, %

     

    Ni

    Cr

    Mo

    Fe

    W

    C

    Si
    max

    Co

    Mn

    V

    P
    max

    S
    max

    Ti

    Cu

    Cb
    (Nb)
    +Ta

    Al

    Zr

    La

    N

    B

    Cb
    (Nb)

    Ta

    Ni+
    Mo

    Mg

    Ni-Mo Alloys

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    N10001

    remainder

    1.0  max

    26.0-  30.0

    4.0-6.0

    ...

    0.05  max

    1.0

    2.5  max

    1.0  max

    0.2-  0.4

    0.04

    0.03

    ...

    ...

    ...

     

     

     

     

     

     

     

     

     

    N10665

    remainder

    1.0  max

    26.0-  30.0

    2.0 max

    ...

    0.02  max

    0.10

    1.0  max

    1.0  max

    ...

    0.04

    0.03

    ...

    ...

    ...

     

     

     

     

     

     

     

     

     

    N10675

    65.0 min

    1.0-  3.0

    27.0-  32.0

    1.0-3.0

    3.0  max

    0.01  max

    0.10

    3.0  max

    3.0  max

    0.20  max

    0.030

    0.010

    0.20  max

    0.20  max

    ...

    0.50  max

    0.10  max

    ...

    ...

    ...

    0.20  max

    0.20  max

    94.0-  98.0

     

    N10629

    remainder

    0.5-  1.5

    26.0-  30.0

    1.0-6.0

    ...

    0.01  max

    0.05

    2.5  max

    1.5  max

    ...

    0.04

    0.01

    ...

    0.5  max

    ...

    0.1-  0.5

    ...

    ...

    ...

    ...

    ...

    ...

    ...

     

    N10624

    remainder

    6.0-  10.0

    21.0-  25.0

    5.0-8.0

    ...

    0.01  max

    0.10

    1.0  max

    1.0  max

    ...

    0.025

    0.01

    ...

    0.5  max

    ...

    ...

    ...

    ...

    ...

    ...

    ...

    ...

    ...

     

    Ni-Mo-Cr-Fe Alloy

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    N10242

    remainder

    7.0-  9.0

    24.0-  26.0

    2.0 max

     

    0.03  max

    0.80

    1.00  max

    0.80  max

     

    0.030

    0.015

     

    0.50  max

     

    0.50  max

     

     

     

    0.006  max

     

     

     

     

    Low C Ni-Cr-Mo Alloys

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    N10276

    remainder

    14.5-  16.5

    15.0-  17.0

    4.0-7.0

    3.0-  4.5

    0.010  max

    0.08

    2.5  max

    1.0  max

    0.35  max

    0.04

    0.03

    ...

    ...

    ...

     

     

     

     

     

     

     

     

     

    N06022

    remainder

    20.0-  22.5

    12.5-  14.5

    2.0-6.0

    2.5-  3.5

    0.015  max

    0.08

    2.5  max

    0.5  max

    0.35  max

    0.02

    0.02

    ...

    ...

    ...

     

     

     

     

     

     

     

     

     

    N06035

    remainder

    32.25-
    34.25

    7.60-
    9.00

    2.00 max

    0.60 max

    0.050 max

    0.60

    1.00 max

    0.50 max

    0.20 max

    0.030

    0.015

    ...

    0.30  max

    ...

    0.40  max

     

     

     

     

     

     

     

     

    N06044

    balance


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B751 Specification for General Requirements for Nickel and Nickel Alloy Welded Tube

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)


    ICS Code

    ICS Number Code 23.040.15 (Non-ferrous metal pipes)

    UNSPSC Code

    UNSPSC Code 11171800(Nickel based super alloys)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/B0626-17A

    Citation Format

    ASTM B626-17a, Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Tube, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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