Steel 10Х2М1ФБ (48ТН-2)

  • Steel 10Х2М (48ТН-1; 12Х2М)
  • Steel 10Х2М1ФБ (48ТН-2)
  • Steel 10Х2МФБ (ЭИ531)

    • Designation

    Name The value
    Designation GOST Cyrillic 10Х2М1ФБ
    Designation GOST Latin 10X2M1FB
    Transliteration 10H2M1FB
    By chemical elements 10Cr2Mo1VNb
    Name The value
    Designation GOST Cyrillic 48ТН-2
    Designation GOST Latin 48TH-2
    Transliteration 48TN-2
    By chemical elements 48TiН-2

    Description

    10Х2М1ФБ steel is used: for the manufacture of billets and vessels for nuclear power plants.

    Note

    Steel high-temperature alloy.

    Standards

    Name Code Standards
    Processing of metals by pressure. Forgings В03 TU 108.11.934-87
    Blanks. Of the workpiece. Slabs В31 TU 14-1-3119-81, TU 14-1-789-73
    Sheets and strips В33 TU 14-1-3409-82

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo Nb
    TU 108.11.934-87 0.08-0.12 ≤0.02 ≤0.02 0.3-0.6 2-2.5 0.17-0.37 ≤0.3 Rest ≤0.25 0.25-0.35 ≤0.1 0.8-1 0.25-0.45
    Fe is the basis.
    According to TU 108.11.934-87, the chemical composition is given for steel grade 10Х2М1ФБ-ВД.
    According to TU 14-1-3119-81 for steel grade 10X2M1FB, deviations in chemical composition are allowed: for carbon -0.010%, for molybdenum ± 0.050%, for vanadium ± 0.050%. The content of impurities of non-ferrous metals (tin, arsenic, lead, zinc, antimony, bismuth) should not exceed the 1 st point of a ten-point scale of spectral analysis. The content of residual elements in steel should be in accordance with GOST 5632.

    Mechanical properties

    sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
    After the main heat treatment (specimens for forgings: longitudinal, cross)
    ≥195 ≥345 ≥20 ≥55 ≥785
    ≥145 ≥245 ≥13 - -
    ≥245 ≥390 ≥20 ≥50 ≥785
    ≥215 ≥290 ≥13 - -
    ≥195 ≥295 ≥13 - -
    ≥245 ≥390 ≥20 ≥50 ≥785
    ≥215 ≥275 ≥13 - -
    ≥185 ≥265 ≥13 - -
    ≥175 ≥245 ≥15 - -

    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
    y The relative narrowing
    KCU Toughness