ASTM WK70406

    Withdrawal of B275 - 14 Standard Practice for Codification of Certain Zinc, Tin and Lead Die Castings

    (What is a Work Item?)

    Developed by Subcommittee: B02.04 | Committee B02 | Contact Staff Manager



    WK70406


    Keywords

    aluminum; lead; magnesium; tin; UNS designations; zinc;

    Rationale

    This standard is being balloted for withdrawal with no replacement because the alloy designations established by the standard are no longer in use. The scope of B275-14 states This practice covers a system for designating die casting alloys of zinc, tin and lead. B275 was originally approved over 50 years ago in 1962. However, since then alloy designations in common usage have changed. Standard B102, Specifications for Lead- and Tin-Alloy Die Castings was withdrawn in 2011. It has been established that the designations established in B275 for four zinc alloys (in die casting and ingot forms) are no longer in common usage, and have been replaced, for example, with common names such as Alloy 3 or Zamak 3, or UNS Z33525 instead of AG40A contained in B275. Previously B275 also contained designations for aluminum and magnesium die casting alloys formerly assigned in conformance with Practice B275 but they have been removed from the standard as they are no longer in use. In short, B275 is being balloted for withdrawal because it is obsolete and no longer being used.

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    Work Item Status

    Date Initiated:
    10-30-2019

    Technical Contact:
    Richard Lynch

    Item:
    002

    Ballot:
    B02 (20-01)

    Status:
    Ballot Item Approved as B275-2014 and Pending Publication