Steel 45Г17Ю3 (Yu3; ЭИ839)

  • Steel E
  • B Steel
  • Steel D27
  • D27S steel
  • Steel D32
  • D36 steel
  • Steel D40
  • D40S steel
  • A40 steel
  • E27 Steel
  • E27S Steel
  • E32 steel
  • E36 Steel
  • E40 steel
  • E40S steel
  • X18G13AN4 steel
  • Steel D
  • Steel 40G18Yu3F (Yu3F)
  • 08Cr18Ni10Gt steel
  • Steel 12G2MFT
  • 12X18H10GT steel
  • Steel 18Х20Н13 (ЭИ997)
  • Steel 25KhGMNTBA (25KhG2MNTBA)
  • Steel 26G2STa
  • Steel 28ХГНМФД
  • 38Kh3M1F1A steel
  • A40S steel
  • Steel 45Г17Ю3 (Ю3; ЭИ839)
  • Steel 50G23Kh4FV7 (48VNNK-2)
  • Steel 80G20F2Yu (F2)
  • Steel A
  • A27S steel
  • A32 steel
  • A36 steel

    • Designation

    Name The value
    Designation GOST Cyrillic 45Г17Ю3
    Designation GOST Latin 45G17Ju3
    Transliteration 45G17Yu3
    By chemical elements 45Mn17Al3
    Name The value
    Designation GOST Cyrillic Ю3
    Designation GOST Latin Ju3
    Transliteration Yu3
    By chemical elements Al3
    Name The value
    Designation GOST Cyrillic ЭИ839
    Designation GOST Latin EI839
    Transliteration EhI839
    By chemical elements -

    Description

    45Г17Ю3 steel is used: for the manufacture of sheet metal up to 60 mm inclusive, and bulb that are used in various steel structures and equipments in shipbuilding; of shapes and rolled sections; forgings and stampings; light duty hull structures of ships, vessels and marine equipment products (sheet and profile parts of hulls of surface ships, forgings welded into the hull, chains and chain devices, winches, spikes, axes, reels, bolts, nuts, pins, gears and worms for slow-moving mechanisms frames, casings, manhole covers, safety devices, doors, cable hangers, spools of posts of pre-emption (in the nitrided condition, ballasts, housings marine engines); parts of transformers.

    Note

    Low austenitic steel.
    Magnetic permeability μ ≤ 1,01 GS/E. Cold pressure treatment and mechanical machining slightly changes the magnetic permeability of steel, but the significance of this characteristic after the manufacturing operations does not exceed of 1.01 GS/e, if cold deformation does not exceed 50%. The magnetic field of the products dramatically increased in the presence of dross, which is ferromagnetic. The slag must be completely removed.
    Steel cannot be used for parts operating friction and parts operating in aggressive environments.

    Standards

    Name Code Standards
    Castings, non-ferrous metals and alloys В84 RD 9257-76
    Blanks. Of the workpiece. Slabs В31 TU 14-1-2403-78, TU 14-1-607-73
    Sheets and strips В33 TU 14-1-2633-79, TU 14-1-774-73, TU 14-1-780-73, TU 14-1-906-74, TU 14-229-278-88
    Bars and shapes В32 TU 14-1-779-73, TU 14-1-985-74

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Al
    TU 14-1-780-73 0.4-0.5 ≤0.03 ≤0.04 16-18 ≤0.5 ≤0.6 ≤0.5 Rest 2.4-3.6
    RD 9257-76 0.4-0.5 ≤0.03 ≤0.04 16-18 ≤0.5 ≤0.6 ≤0.5 Rest 2.4-3.6
    Fe is the basis.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
    Sheet hot-rolled steel in the delivery state
    5-6 390-635 ≥610 ≥30 -
    7-40 390-540 ≥610 ≥30 -
    3; 4 392-657 ≥608 ≥30 -
    3-40 ≥392 ≥608 ≥30 ≥1960
    6-30 ≥343 ≥610 ≥26 -
    Forgings. Without heat treatment
    ≤250 ≥294 ≥589 ≥40 -
    ≤150 ≥343 ≥608 ≥35 -
    ≤100 ≥392 ≥608 ≥30 -
    Long products hot-rolled steel groups And in the delivery condition without heat treatment
    - ≥343 ≥589 ≥30 -
    Shaped hot-rolled steel (area, bulb, channel)
    - ≥392 ≥608 ≥30 -

    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
    KCU Toughness

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m a, 10-6 1/°C С, J/(kg · °C)
    20 1716 7600 - 900 - 4815
    100 - - 1549 - 1537 -
    200 - - 1758 - 1681 -
    300 - - 1884 - 1791 -
    400 - - 2177 - 1859 -
    500 - - 2386 - 1924 -
    600 - - 2554 - 1957 -
    700 - - 2889 - 1993 -
    800 - - - - 2179 -

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    r Density
    l Coefficient of thermal conductivity
    R UD. the resistivity

    Technological properties

    Name The value
    Weldability Welded satisfactorily to each other and with conventional ferromagnetic hull steels as well as corrosion-resistant steel type brand 12X18H9T manual welding with coated electrodes, automatic and semi-automatic submerged arc welding and semi-automatic welding a thin wire in carbon dioxide. Materials for welding: austenitic electrodes EA-606/11 - for manual welding of steel between himself and the steel 12X18H9T; the electrodes EA-48M/22 - for manual welding with steel like AK and other ferromagnetic steels; wire marks SV-08Г35Ю6М2 + flux 48-RP-11 - for automatic and semi-automatic welding of steel Yu3 each other and with steels of type AK and ferromagnetic steel. Heat treatment after welding is not recommended.
    Machinability Turning, milling and planing are possible at reduced power compared with ordinary structural steels. Drilling, chiseling, and cutting internal and external threads of a conventional tool made with difficulty.