Alloy AO3-7

  • 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 АО3-7
    Designation GOST Latin AO3-7
    Transliteration AO3-7
    By chemical elements -

    Description

    Alloy AO3−7 is used: for castings monometallic liners and sleeves.

    Note

    The recommended modes of operation:
    — load ≤ 19,5 Mn/m2 (200 kg/cm2);
    — sliding speed ≤ 15 m/s;
    — temperature ≤ 100 °C;
    — recommended shaft hardness ≥ 320 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 Mn Si Fe Cu Al Zn Sn Mg
    GOST 14113-78 0.5-0.8 0.6-1.2 ≤0.5 7-8.5 Rest ≤0.2 2.5-3.5 ≤0.35
    Al is the base.
    According to GOST 14113-78 for an alloy smelted in cast-iron crucibles, the content of iron admixture is allowed up to 0.70%.