Alloy AO9-2

  • Alloy AMK
  • Alloy AMST
  • Alloy AH-2.5
  • Alloy AO12-1
  • Alloy AO20-1
  • Alloy AO3-7
  • Alloy AO6-1
  • Alloy AO9-1
  • Alloy AO9-2
  • Alloy ACM

    • Designation

    Name The value
    Designation GOST Cyrillic АО9-2
    Designation GOST Latin AO9-2
    Transliteration AO9-2
    By chemical elements -

    Description

    Alloy AO9−2 is used: for castings monometallic liners and sleeves.

    Note

    The recommended modes of operation:
    — load ≤ 24,5 Mn/m2 (250 kgf/cm2);
    — sliding speed ≤ 15 m/s;
    — temperature ≤ 100 °C;
    — recommended shaft hardness ≥ 250 HB.
    On an antifriction layer of articles coated with a soft metal or a polymer antifriction coating thickness of from 0.003 to 0.03 mm. permitted by agreement with the consumer in technically justified cases to cover the product with a soft metal or polymer coating.

    Standards

    Name Code Standards
    Non-ferrous metals, including rare, and their alloys В51 GOST 14113-78

    Chemical composition

    Standard Si Ni Fe Cu Al Sn
    GOST 14113-78 0.3-0.7 0.8-1.2 ≤0.5 2-2.5 Rest 8-10
    Al is the base.
    According to GOST 14113-78, the content of other impurities, individually, should be ≤ 0.050%, and the total content of other impurities should be ≤ 0.10%.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % HB, MPa
    Casting in a metal mold in the state of delivery
    78-105 130-170 2.3-6.3 50-60

    Description mechanical marks

    Name Description
    sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
    σU Limit short-term strength
    d5 Elongation after rupture
    HB Brinell hardness number