Steel A85

  • U16 steel (EI336)
  • U9A steel
  • U9 steel
  • U8GA steel
  • U8G steel
  • U8A steel
  • U8 steel
  • U7A steel
  • U7 steel
  • U12A steel
  • U12 steel
  • U11A steel (U11)
  • U10A steel
  • U10 steel
  • Steel AU10E (ASU10E)
  • A85 steel
  • Steel A75 (U7AB)

    • Designation

    Name The value
    Designation GOST Cyrillic А85
    Designation GOST Latin A85
    Transliteration A85
    By chemical elements -

    Description

    A85 steel is used: for the production of bars with special surface finish, a diameter of 1−12 mm, used for the manufacture of parts for watches exposed to the subsequent thermal treatment.

    Standards

    Name Code Standards
    Bars and shapes В32 TU 14-1-3390-82

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu
    TU 14-1-3390-82 0.8-0.9 0.18-0.24 0.04-0.08 0.4-0.7 ≤0.25 ≤0.3 ≤0.25 Rest ≤0.3
    Fe is the basis.
    According to TU 14-1-3390-82, the chemical composition is given for steel grade A85.

    Mechanical properties

    Section, mm σU, MPa
    Bars with special surface finish as supplied on the other 14-1-3390-82
    1-4 740-980

    Description mechanical marks

    Name Description
    σU Limit short-term strength