Cast iron ИЧХ28Н2

  • ChKh22S cast iron
  • Cast iron CHN5G6D4SH
  • ChS13 cast iron
  • ChS15 cast iron
  • ChS15M4 cast iron
  • ChS17 cast iron
  • ChS17M3 cast iron
  • ChC16 cast iron
  • ChC16M2 cast iron
  • Cast iron CHX22
  • Cast iron CHN4X2
  • Cast iron CHX28
  • Cast iron CHX28D2
  • ChKh28P cast iron
  • Cast iron CHX32
  • Cr9H5 cast iron
  • ChU22Sh cast iron
  • ChU30 cast iron
  • ChU6C5 cast iron
  • ChU7X2 cast iron
  • Cast iron IChX28H2
  • Cast iron 250X25NT
  • Cast iron 250X25T
  • Cast iron 300X12ML
  • Cast iron 300X32H2M2TL
  • 320X20H cast iron
  • Cast iron 340Cr18NiML
  • Cast iron ICH300Cr18G3
  • Cast iron ICHX12M
  • Cast iron IChX23FL
  • Cast iron CHN20D2SH
  • Cast iron CHG6S3SH
  • ChG7X4 cast iron
  • ChG8D3 cast iron
  • Cast iron CHN11G7SH
  • Cast iron CHN15D3Sh
  • Cast iron CHN15D7
  • ChN17D3X2 cast iron (ZhCh-1)
  • Cast iron CHN19Kh3SH

    • Designation

    Name The value
    Designation GOST Cyrillic ИЧХ28Н2
    Designation GOST Latin IChX28H2
    Transliteration IChH28N2
    By chemical elements ИZrCr28Н2

    Description

    Cast iron ИЧХ28Н2 used: for the manufacture of castings hydraulics groundwater pumps hydroabrasive mixture with high resistance against abrasive wear.

    Note

    Iron brand ИЧХ28Н, is melted in a basic and acidic electric arc and induction furnaces.

    Standards

    Name Code Standards
    Cast iron castings (grey and malleable cast iron) В81 TU 26-06-1484-87, TU 1-812-0072-94

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe
    TU 26-06-1484-87 2.5-3 ≤0.08 ≤1 0.5-1 25-30 0.7-1.4 1.5-3 Rest
    Fe is the basis.
    According to TU 26-06-1484-87, in order to save nickel, some of it can be replaced by copper (1.0% of nickel is replaced by 2.0% of copper), but not exceeding its maximum solubility. The total mass fraction of nickel and copper in cast iron should not exceed 5.0%. In order to increase the wear resistance, it is possible to apply the modification and microalloying of cast iron with titanium (0.10-0.40%), vanadium (0.10-0.30%), boron (0.01-0.030%). At the same time, the chromium content should be in the range 25.0-27.0%, and of nickel 0.40-0.70%.

    Mechanical properties

    HB, MPa HRC
    Casting on the other 26-06-1484-87. Normalization (hardening) at 950-1000 °C (heating rate 50 °C/h, endurance 3 h), air cooling
    500-550 52-56
    Casting on the other 26-06-1484-87. Vacation at 300-350 °C (heating rate 50 °C/h, endurance 3 h), air cooling
    500-550 52-56
    Casting on the other 26-06-1484-87. Softening annealing at 730-750 °C (heating rate 50 °C/h, exposure for 4-6 h), cooling with the furnace
    370-430 39-46
    Casting on the other 26-06-1484-87. Stress relieving: Vacation at 550-580 °C (heating rate 50 °C/h, endurance 3 h), air cooling
    420-580 44-58

    Description mechanical marks

    Name Description
    HB Brinell hardness number
    HRC Rockwell hardness (indenter diamond spheroconical)