Cast iron CHH28P

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    • Designation

    Name The value
    Designation GOST Cyrillic ЧХ28П
    Designation GOST Latin ChX28P
    Transliteration ChH28P
    By chemical elements ZrCr28P

    Description

    Cast iron CHH28P used: for the manufacture of parts with high durability (after oxidative annealing) in a zinc melt at a temperature up to 600 °C (related parts of the friction pairs, working in a zinc melt units continuous hot-dip galvanizing).

    Note

    Chromium high alloy cast iron.

    Standards

    Name Code Standards
    Castings with special properties (iron and steel) В83 GOST 7769-82

    Chemical composition

    Standard C S P Mn Cr Si Fe
    GOST 7769-82 1.8-3 ≤0.08 0.8-1.5 ≤1 25-30 1.5-2.5 Rest
    Fe is the basis.
    According to GOST 7769-82, nickel content is allowed up to 1.0% or copper up to 1.50%, introduced by natural alloyed iron, alloyed with steel scrap or magnesium-containing ligature.

    Mechanical properties

    σU, MPa HB, MPa
    Castings on OST 1 90077-72
    ≥200 245-390

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    HB Brinell hardness number