Cast iron CHH1

  • Cast iron CHN2X
  • Cast iron CHN3KhMDSh
  • CHNMH cast iron
  • ChNMSh cast iron
  • Cast iron CHNCHMD
  • ChNKhMDSh cast iron
  • ChS5 cast iron
  • ChS5Sh cast iron
  • Cast iron ChX1
  • Cast iron ChX2
  • Cast iron ChX3
  • ChKh3T cast iron
  • CHUCHS cast iron

    • Designation

    Name The value
    Designation GOST Cyrillic ЧХ1
    Designation GOST Latin ChX1
    Transliteration ChH1
    By chemical elements ZrCr1

    Description

    Cast iron CHH1 used: for the manufacture of castings with the lowest allowable wall thickness of 15 mm; for parts with high corrosion resistance to the gas, air and alkaline media in terms of friction and wear and heat-resistant in air and furnace gases to 500 °C (dampers, blast furnaces cooling plates on the sides and the grate sinter machines, parts of coke chemical equipment, serouglerod retorts, parts of gas turbine engines and compressors, burners and molds, glass molds, the exhaust manifolds of diesel engines).

    Note

    Heat-resistant low-alloy chromium cast iron.

    Standards

    Name Code Standards
    Castings with special properties (iron and steel) В83 GOST 7769-82
    Cast iron В11 STP М319-95

    Chemical composition

    Standard C S P Mn Cr Si Fe
    GOST 7769-82 3-3.8 ≤0.12 ≤0.3 ≤1 0.4-1 1.5-2.5 Rest
    STP М319-95 3-3.8 ≤0.12 ≤0.3 ≤1 0.4-1 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
    ≥170 203-280

    Description mechanical marks

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

    Technological properties

    Name The value
    Microstructure Pearlitic or pearlitic-sementina. Graphite plate.
    Machinability Mechanical treatment is difficult.