ASTM WK61559

    Revision of F899 - 12b Standard Specification for Wrought Stainless Steels for Surgical Instruments

    (What is a Work Item?)

    Active Standard: F899 - 19

    Developed by Subcommittee: F04.12 | Committee F04 | Contact Staff Manager



    WK61559


    Keywords

    austenitic; ferritic; instruments; martensitic; precipitation hardenable; stainless steel; surgical;

    Rationale

    Materials for medical devices have to meet many requirements which tend to mutually exclude each other. In semi-finished stage of production a good machinability often is necessary, whereas the final applications demand is a high wear resistance. Furthermore the final product has to provide a high degree of hardness alongside with excellent corrosion resistance. Steel materials which provide high wear and corrosion resistance in hardened state and good machinability in soft state are ideal for this purpose. However, these properties must be attainable with simple heat treatment processes. For this reason, Zapp has proposed to various customers to use the material 9.9440YL. After initial successful tests with the material, particularly interested customers have demanded conformity to industrial material standards for medical devices and therefore want to include the material YL in the ASTM F899 standard. Thus Zapp frequently receives costumer requests for alloys which provide such characteristics and are approved by the ASTM F 899 standard. The documents at hand therefore presents the martensitic alloy 9.9440YL to the F04.12 ASTM subcommittee in order to introduce the alloy into ASTM F899.

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    Work Item Status

    Date Initiated:
    12-22-2017

    Technical Contact:
    Lasse Langner

    Item:
    001

    Ballot:
    F04 (19-01)

    Status:
    Withdrawn From Balloting

    Item:
    006

    Ballot:
    F04 (19-03)

    Status:
    Ballot Item Approved as F899-2019 and Pending Publication