Steel 65S2VA

  • 70G steel
  • Steel 60S2HFA
  • Steel 60KhFA (60KhF)
  • Steel 65
  • Steel 65G (65G1)
  • Steel 65GA
  • Steel 65S2VA
  • Steel 68A
  • Steel 68GA
  • Steel 70
  • Steel 60S2HG
  • Steel 70G2
  • Steel 70S2HA (EI142)
  • Steel 70C3A
  • 70KhGFA steel
  • Steel 75
  • Steel 80
  • Steel 85
  • KT-2 steel
  • KT-3 steel
  • Steel 55S2A
  • Steel 3K-7
  • Steel 40P
  • Steel 50RA (50P)
  • 50KhG steel
  • 50KhGA steel
  • 50KhGFA steel
  • Steel 50KhFA (50KhF)
  • 51KhFA steel
  • Steel 55C2
  • Steel 60С2Х (60С2ХА; 60С2ХАA)
  • Steel 55S2GF
  • Steel 55KhGR
  • Steel 55KhFA (55KhF)
  • 60G steel
  • Steel 60C2
  • Steel 60S2A
  • Steel 60S2G
  • Steel 60C2H2A

    • Designation

    Name The value
    Designation GOST Cyrillic 65С2ВА
    Designation GOST Latin 65C2BA
    Transliteration 65S2VA
    By chemical elements 65С2W

    Description

    Steel 65S2VA used: for the manufacture of critical and high-loaded springs and leaf springs; fine springs and measuring tapes.

    Note

    Steel spring alloy of high quality.

    Standards

    Name Code Standards
    Sheets and strips В23 GOST 103-2006
    Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
    Wire, steel, alloy В73 GOST 14963-78, TU 14-4-70-72
    Tape В34 GOST 2283-79
    Steel wire medium and high carbon В72 GOST 26366-84
    Sheets and strips В33 GOST 4405-75, TU 1-14-131-1017-2005, TU 14-1-723-73
    Bars and shapes В32 GOST 7417-75, GOST 7419-90, GOST 8559-75, GOST 8560-78, GOST 14959-79, TU 14-1-2118-77, TU 14-178-179-88, TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008
    Classification, nomenclature and General rules В20 OST 1 90005-91
    Blanks. Of the workpiece. Slabs В31 TU 14-1-1833-76

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu W
    GOST 14959-79 0.61-0.69 ≤0.025 ≤0.025 0.7-1 ≤0.3 1.5-2 ≤0.25 Rest ≤0.2 0.8-1.2
    Fe is the basis.

    Mechanical properties

    Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % d4 y, % KCU, kJ/m2 HB, MPa HRC
    Rolled sheet. Isothermal quenching with exposure at 270 °C + Vacation
    - - ≥1750 ≥2110 ≥8 - ≥38 ≥432 - -
    Rolled steel. Quenching in oil from 860 °C to + Leave at 400 °C
    - - ≥1860 ≥2060 ≥8 - ≥30 ≥274 - -
    Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
    - - - 1520-1770 - - - - - 44-48
    Cold-rolled steel strip of 0.1-4.0 mm according to GOST 2283-79 on delivery
    0.1-4 - - 780-1180 - - - - - -
    Rolled sheet. Isothermal quenching with exposure at 270 °C + Vacation
    - 150 ≥1810 ≥2010 ≥9 - ≥38 ≥432 - -
    Rolled steel. Quenching in oil from 860 °C to + Leave at 400 °C
    - - ≥1670 ≥2060 ≥10 - ≥33 ≥235 - -
    Cold-rolled steel strip of 0.1-4.0 mm according to GOST 2283-79 on delivery
    0.1-4 - - ≤880 - ≥8 - - - -
    Rolled sheet. Isothermal quenching with exposure at 270 °C + Vacation
    - 280 ≥1830 ≥1930 ≥11 - ≥38 ≥500 - -
    Rolled steel. Quenching in oil from 860 °C to + Leave at 400 °C
    - - ≥1570 ≥1810 ≥11 - ≥29 - - -
    Wire with special surface finishes for the manufacture of springs cold-wound in the delivery condition according to GOST 14963-78
    0.5-14 - - ≤1030 - - - - - -
    Rolled sheet. Isothermal quenching with exposure at 270 °C + Vacation
    - 310 ≥1830 ≥1930 ≥10 - ≥40 ≥520 - -
    Rolled steel. Quenching in oil from 860 °C to + Leave at 400 °C
    - - ≥1370 ≥1620 ≥15 - ≥60 - - -
    Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Quenching in oil from 850 °C + Vacation at 420 °C
    - ≥1665 ≥1860 ≥5 - ≥20 - ≤285 -
    Rolled sheet. Isothermal quenching with exposure at 270 °C + Vacation
    - 400 ≥1790 ≥1860 ≥11 - ≥40 ≥491 - -
    Rolled steel. Quenching in oil from 860 °C to + Leave at 400 °C
    - - ≥1960 ≥2110 ≥8 - ≥27 ≥245 - -
    - - ≥2010 ≥2160 ≥8 - ≥26 ≥216 - -
    Rolled steel. Quenching in oil from 860 °C to + Vacation at 450 °C
    - - ≥1670 ≥1760 ≥10 - ≥35 ≥255 - -
    - - ≥1370 ≥1710 ≥10 - ≥30 ≥255 - -
    - - ≥1270 ≥1570 ≥11 - ≥21 - - -
    - - ≥1180 ≥1370 ≥15 - ≥50 - - -
    - - ≥1710 ≥1810 ≥10 - ≥33 ≥235 - -
    - - ≥1760 ≥1860 ≥10 - ≥32 ≥235 - -

    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
    d4 Elongation after rupture
    y The relative narrowing
    KCU Toughness
    HB Brinell hardness number
    HRC Rockwell hardness (indenter diamond spheroconical)

    Physical characteristics

    Temperature Е, HPa G, HPa r, kg/m3 l, W/(m · °C) a, 10-6 1/°C С, J/(kg · °C)
    20 211 82 7850 27 - -
    100 206 80 - 27 115 475
    200 200 78 - 28 125 500
    300 195 74 - 29 13 510
    400 185 70 - 29 135 530
    500 178 67 - 29 138 555
    600 154 58 - 29 143 580
    700 136 51 - 28 145 615
    800 131 49 - 28 145 615
    1000 - - - - 135 690

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    G Modulus of elasticity shear torsion
    r Density
    l Coefficient of thermal conductivity
    R UD. the resistivity
    a The coefficient of linear expansion

    Technological properties

    Name The value
    Weldability Does not apply to welded structures.
    Склонность к отпускной хрупкости Tend not.
    The temperature of forging Start - 1100 °C, the end of - 900 °C.
    Flock-sensitive sensitivity not sensitive.