Cast iron CHH22

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    • Designation

    Name The value
    Designation GOST Cyrillic ЧХ22
    Designation GOST Latin ChX22
    Transliteration ChH22
    By chemical elements ZrCr22

    Description

    Cast iron CHH22 used: for the manufacture of parts with high resistance against abrasive wear and galling in the conditions of milling equipment, screens and slezov, sintering machines and sand — blasting chambers and at elevated temperatures (wear-resistant parts of hydraulic machines, which pump abrasive mixture; lining palarivattom, grinding details of coal — and ore-grinding mills, bucket bashmetov, sklesi, heat, highly resistant to blast the blades of the impellers, inserts for reinforcement bars of the secondary cooling zone of continuous casting plants steel mills lining).

    Note

    Chromium wear-resistant alloyed 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 V Ti
    GOST 7769-82 2.4-3.6 ≤0.08 ≤0.1 1.5-2.5 19-25 0.2-1 Rest 0.15-0.35 0.15-0.35
    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
    ≥290 330-610

    Description mechanical marks

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