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    STP369

    Properties of 12 Per Cent Chromium Alloys Modified with Small Columbium Additions

    Published: 01 January 1965


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    Abstract

    A nominal addition of 0.15 per cent columbium to a heat-hardenable 12 per cent chromium stainless steel (Type 410) is without effect on the general corrosion resistance and quenched hardness of this material. The columbium addition produces a refinement in grain size, a reduced susceptibility to temper embrittlement, a mild improvement in resistance to stress-corrosion cracking, a marked improvement in control of tempered hardness, and an increase in the elevated-temperature mechanical strength of the 12 per cent chromium stainless steel.


    Author Information:

    Tanczyn, H.
    Senior research engineer, research and technology, Armco Steel Corp., Baltimore, Md.


    Committee/Subcommittee: A01.13

    DOI: 10.1520/STP43734S