ASTM WK68154

    Revision of A479 / A479M - 18 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

    (What is a Work Item?)

    Active Standard: A479 / A479M - 18

    Developed by Subcommittee: A01.17 | Committee A01 | Contact Staff Manager



    WK68154


    Keywords

    austenitic stainless steel; austenitic-ferritic duplex stainless steel; ferritic stainless steel; martensitic stainless steel; pressure-containing parts; pressure vessel service; stainless steel bars; stainless steel shapes; temperature service applications—high;;

    Rationale

    The Work Order request is to add a new alloy to the Specification. The alloy is referred to as Advanced 347AP with slightly higher mechanical properties and allowable stress values at high temperature. The alloy is backed by UOP for refinery and high temperature applications. The only difference in chemistry is added boron 0.001-0.005 and a slightly higher Nitrogen 0.06-0.12 (from 0.06-0.10) in 347AP.

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    Work Item Status

    Date Initiated:
    05-12-2019

    Technical Contact:
    Dennis Rahoi

    Item:
    002

    Ballot:
    A01.17 (19-05)

    Status:
    Negative Votes Need Resolution