Steel 10KH11N20T2R (ЭИ696А)

  • Steel 10Х11Н20Т2Р (ЭИ696А)
  • 10X23H10 steel
  • Steel 10Х23Н18 (0Х23Н18)
  • Steel 12Х25Н16Г7АР (ЭИ835)
  • Steel 20X23H18 (EI417)
  • Steel 40Х10С2М (ЭИ107)
  • Steel 40Х9С2 (4Х9С2)
  • Steel 45Х22Н4М3 (EP48)
  • Steel 55Kh20G9AN4 (EP303)

    • Designation

    Name The value
    Designation GOST Cyrillic 10Х11Н20Т2Р
    Designation GOST Latin 10X11H20T2P
    Transliteration 10H11N20T2R
    By chemical elements 10Cr11Н20Ti2B
    Name The value
    Designation GOST Cyrillic ЭИ696А
    Designation GOST Latin EI696A
    Transliteration EhI696A
    By chemical elements -

    Description

    10KH11N20T2R steel is used: for the production of hot-rolled steel plate; parts of turbine; solid-rolled rings for different purposes.

    Note

    Steel heat-resistant austenitic class.
    The recommended maximum operating temperature for a limited period of work — +700 °C. the Temperature of beginning of intensive scaling in air +850 °C.

    Standards

    Name Code Standards
    Sheets and strips В23 GOST 19904-90
    Sheets and strips В33 GOST 5582-75, TU 14-1-1747-76, TU 14-1-2114-77, TU 14-1-5103-92
    Classification, nomenclature and General rules В30 GOST 5632-72
    Bars and shapes В32 OST 1 92049-76, TU 14-1-1671-76, TU 14-11-245-88
    Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, OST 1 90407-91, TU 14-1-1214-75
    Processing of metals by pressure. Forgings В03 TU 14-1-2902-80, TU 14-1-2918-80
    Welding and cutting metals. Soldering, riveting В05 TU 14-1-997-2012

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu Al V B Ti Mo W
    TU 14-1-2918-80 ≤0.1 ≤0.02 ≤0.03 ≤1 10-12.5 ≤1 18-21 Rest ≤0.3 ≤0.4 ≤0.2 ≤0.008 2.3-2.8 ≤0.3 ≤0.2
    TU 14-1-1671-76 ≤0.1 ≤0.02 ≤0.03 ≤1 10-12.5 ≤1 18-21 Rest ≤0.3 ≤0.4 ≤0.2 ≤0.008 2.3-2.8 ≤0.3 ≤0.2
    TU 14-1-1747-76 ≤0.1 ≤0.02 ≤0.03 ≤1 10-12.5 ≤1 18-21 Rest ≤0.2 ≤0.5 - ≤0.008 2.3-2.8 - -
    GOST 5632-72 ≤0.1 ≤0.02 ≤0.03 ≤1 10-12.5 ≤1 18-21 Rest ≤0.3 ≤0.8 ≤0.2 ≤0.008 2.3-2.8 ≤0.3 ≤0.2
    TU 14-1-5103-92 ≤0.1 ≤0.02 ≤0.03 ≤1 10-12.5 ≤1 18-21 Rest - ≤0.5 - ≤0.008 2.3-2.8 - -
    Fe is the basis.
    According to TU 14-1-5103-92 the chemical composition is given for 10Х11Н20Т2Р (ЭИ696А). Boron, cerium and zirconium are introduced into the metal by calculation and chemical analysis are not determined. At the request of the consumer, the steel is supplied with a boron content of 0.003-0.005%.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
    Ring forged in OST 1 92049-76. Annealing in air or in oil with 1100-1170 °C (exposure 2 hours) + Aging at 700-750 °C (extract 15-25 h), air cooling
    25 ≥440 ≥780 ≥11 ≥12 ≥294 241-302
    Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling
    4-11 ≥590 ≥980 ≥20 - - -
    Hot-rolled sheet. Quenching in water, in air or under water shower with 1020-1060 °C
    4-11 - ≤740 ≥35 - - -
    Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling
    4-11 - ≥590 ≥10 - - -
    Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Quenching in water or air with 1020-1060 °C
    0.8-3.9 - ≤740 ≥35 - - -
    Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling
    0.8-3.9 - ≥980 ≥20 - - -
    Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Annealing in air or in water 1020-1060 °C + Aging at 710-730 °C (exposure 8 h), air cooling
    - ≥590 ≥10 - - -
    Sheet as supplied. Aging at 710-730 °C (exposure 8 h), air cooling
    0.8-3.9 - ≥590 ≥10 - - -
    Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Annealing in air or in water 1020-1060 °C + Aging at 710-730 °C (exposure 8 h), air cooling
    - ≥960 ≥20 - - -
    Forgings and rolled steel. Heating to 1100-1170 °C (exposure 2 hours), air cooling or oil + Aging at 700-750 °C (extract 15-25 h), air cooling
    ≥440 ≥780 ≥15 ≥15 ≥290 241-302

    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
    HB Brinell hardness number