Alloy ЛК4

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    • Designation

    Name The value
    Designation GOST Cyrillic ЛК4
    Designation GOST Latin LK4
    Transliteration LK4
    By chemical elements ЛCo4

    Description

    Alloy ЛК4 used: for the production of cast bar billets (LPZ), intended for subsequent remelting and casting parts of aviation technology.

    Note

    The heat-resistant cast alloy on cobalt basis.

    Standards

    Name Code Standards
    Non-ferrous metals, including rare, and their alloys В51 OST 1 90127-85

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Mo W Co
    OST 1 90127-85 0.15-0.25 ≤0.025 ≤0.025 ≤0.6 25-28 ≤0.5 3-3.75 ≤1.5 4.5-5.5 ≤0.5 ≥58
    Co is the basis.
    According to OST 1 90127-85 the chemical composition is given for the alloy LK4. In the alloy, in agreement with the consumer, the mass fraction of carbon in the range 0.20-0.30% is allowed.