Cast iron SCH15

  • 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 СЧ15
    Designation GOST Latin CCh15
    Transliteration SCh15
    By chemical elements -

    Description

    Cast iron SCH15 used: for the manufacture of castings, crankcases, covers, brake drums, gearboxes, inlet and exhaust pipes, flywheels and other automotive components; drums, axles, gear housings and other parts of chemical engineering; parts working in compression (Bashmakov, columns) in construction; small and medium non-critical parts of diesel engine; sewer pipes and radiators; castings 3 groups for stationary steam turbines, turbine equipment, nuclear power plants, elements of steam boilers and pipelines, hydraulic turbines, hydraulic valves and other equipment power plant engineering, subjected to static loads and castings, working in conditions of water vapor and oil at temperatures up to 70 °C (body of column, bearing housing, cover-mounts velopanorama, frame bearings, frame foundations, liners, bushings, struts, tailpipes, casing); casting parts of valves and actuators; non-critical casting parts mining and metallurgical equipment; cast connecting parts for pipelines.

    Note

    Ferritic-pearlitic cast iron with lamellar graphite.

    Standards

    Name Code Standards
    Castings with special properties (iron and steel) В83 KSt 81-033:2009
    Cast iron В11 GOST 1412-85
    Pipes of ferrous metals and alloys, cast fittings to them В61 GOST 5525-88, GOST 9583-75
    Cast iron castings (grey and malleable cast iron) В81 OST 108.962.01-85, OST 24.207.01-90, OST 23.4.258-86, OST 23.4.117-84, TU 26-0401-725-86, TU 1-812-0072-94

    Chemical composition

    Standard C S P Mn Si Fe
    GOST 1412-85 3.5-3.7 ≤0.15 ≤0.2 0.5-0.8 2-2.4 Rest
    KSt 81-033:2009 3.5-3.7 ≤0.15 ≤0.2 0.5-0.8 2-2.4 Rest
    Fe is the basis.
    Allowed low alloying of cast iron with various elements (chromium, nickel, copper, phosphorus, etc.).

    Mechanical properties

    σU, MPa HB, MPa
    Castings in cast or heat treated condition for STP М319-95
    ≥150 130-241
    Part of the connecting piping (sand casting) according to GOST 5525-88 (NV - in the center of a wall)
    ≥150 ≤250

    Description mechanical marks

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

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) С, J/(kg · °C)
    20 70-110 7000 59 460

    A description of the physical symbols

    Name Description
    l Coefficient of thermal conductivity