Cast iron СЧ20ХН2

  • Cr21 cast iron
  • ChTB1.8 cast iron
  • ChNM1.2 cast iron
  • ChM1.8 cast iron
  • SCI cast iron
  • Cr35 cast iron
  • Cr30 cast iron
  • Cr25 cast iron
  • Cr24 cast iron
  • Cr20CrNi2 cast iron
  • Cr20KhN cast iron
  • Cr20 cast iron
  • Cr18 cast iron
  • Cr15 cast iron
  • Cr10 cast iron
  • Cast iron SCh03Ts01B
  • NKHT pig iron (NKHT)

    • Designation

    Name The value
    Designation GOST Cyrillic СЧ20ХН2
    Designation GOST Latin CCh20XH2
    Transliteration SCh20HN2
    By chemical elements -

    Description

    Cast iron СЧ20ХН2 used: for the production of castings with the lowest allowable wall thickness of 15 mm corrosion resistant parts operating in the gas and alkaline environments (soda boilers, pereraspredelitel and other details).

    Note

    Corrosion resistant grey cast iron with Ni and CR.

    Standards

    Name Code Standards
    Cast iron В11 STP М319-95

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe
    STP М319-95 3.2-3.7 ≤0.15 ≤0.2 0.4-0.9 0.4-0.7 1.5-2.3 1.8-2.5 Rest
    Fe is the basis.

    Mechanical properties

    σU, MPa HB, MPa
    Castings in cast or heat treated condition for STP М319-95
    ≥200 170-241

    Description mechanical marks

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

    Technological properties

    Name The value
    Microstructure Pearlitic perlito-ferritic. Graphite plate.