ASTM WK73583

    Revision of A1091 / A1091M - 16e1 Standard Specification for Steel Castings, Creep-Strength Enhanced Ferritic Alloy, for Pressure-Containing Parts, Suitable for High Temperature Service

    (What is a Work Item?)

    Active Standard: A1091 / A1091M - 21

    Developed by Subcommittee: A01.18 | Committee A01 | Contact Staff Manager



    casting; centrifugal; ferritic; high-temperature service; investment casting; Martensitic; pipe; pressure containing; steel castings;;


    Five-year review: (1) Corrects spelling of Molybdenum. (2) Replaces welding repair(s) with welding or weld(s). (3) Removes Columbium from Table 1 as Niobium is already listed. (4) Added footnote to Table 1 that all values are a maximum unless a range is provided. (5) Updated title and column headings in Table 1. (6) Removed reference to A335 it isnt needed because hardness testing is covered by A703 which would cover sand and centrifugal castings. (7) Added reference to A985 where necessary. Some unaltered text for this specification is provided as an aid to the reader and is not being considered for revision by this ballot item. Any negative votes or comments related to unaltered text will be considered as not related to this ballot and will be discussed by the subcommittee as new business at a future meeting.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    Elaine Thomas


    A01 (21-02)

    Ballot Item Approved as A1091/A1091M-2021 and Pending Publication