Cast iron Achs-5

  • Cast iron AChV-1
  • Cast iron AChV-2
  • Cast iron AChK-1
  • Cast iron AChK-2
  • Cast iron AChS-1
  • Cast iron AChS-2
  • Cast iron ASF-3
  • Cast iron AChS-4
  • Cast iron AChS-5
  • Cast iron AChS-6

    • Designation

    Name The value
    Designation GOST Cyrillic АЧС-5
    Designation GOST Latin AChC-5
    Transliteration AChS-5
    By chemical elements -

    Description

    Cast iron Achs-5 is used: for the production of castings working in heavy loaded friction units in the pair with tempered or normalized shaft.

    Note

    Grey antifriction cast iron with lamellar graphite.

    Standards

    Name Code Standards
    Cast iron В11 GOST 1585-85

    Chemical composition

    Standard C S P Mn Si Fe Al
    GOST 1585-85 3.5-4.3 ≤0.05 ≤0.2 7.5-12.5 2.5-3.5 Rest 0.4-0.8
    Fe is the basis.
    According to GOST 1585-85, the limits of manganese content in castings are established depending on the thickness of the casting wall: wall thickness 5-10 mm - 7.50-8.50% Mn; > 10-20 mm - 8.50-9.50% Mn; > 20-30 mm - 9.50-10.50% Mn; > 30-40 mm - 10.50-11.50% Mn; > 40-60 mm - 11.50-12.50% Mn.

    Technological properties

    Name The value
    Microstructure Perlite or pearlitic-ferritic. Graphite: a form - ПГф1, ПГф2, ПГф4, ВГф5; size - ПГД15 - ПГД180; distribution - ПГр1 - ПГр3. Austenite: after school - at least 80% of the field section in the cast condition - not less than 45% of the field sections. Carbides: after school - time should not exceed 8% in cast condition - no more than 25%.
    Operating conditions The use of castings made of cast iron notificationname in friction requires careful installation, providing the pair of the friction surfaces and the absence of bias; continuous lubrication, permitting true and significant heating of the friction units; increase of the gap compared to the established bronze 15-30%, in the presence of significant heating osetreni in the work - up to 50%; running at idle and progressively higher loads. At a pressure of P≤20.0 MPa sliding speed V must be ≤1.0 m/s and the product P·V ≤ 20.0 MPa·m/s At a pressure of P≤30,0 MPa sliding speed V must be ≤0.4 m/s and the product P·V ≤ 12.5 MPa·m/s.