Steel 10Х23Н18 (0Х23Н18)

  • 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 10Х23Н18
    Designation GOST Latin 10X23H18
    Transliteration 10H23N18
    By chemical elements 10Cr23Н18
    Name The value
    Designation GOST Cyrillic 0Х23Н18
    Designation GOST Latin 0X23H18
    Transliteration 0H23N18
    By chemical elements 0Cr23Н18

    Description

    10Х23Н18 steel is used: for the manufacture of sheet metal parts, pipes, fittings (at low loads), operating at +1000 °C; pipes and fittings installations of methane conversion and pyrolysis; aviation parts; all connections of equipment installed in radioactive environments.

    Note

    Heat-resistant steel and heat resistant austenitic class.
    The recommended maximum operating temperature for a long time +1000 °C.
    Temperature intense scaling in air +1050 °C.
    In the temperature range 600−800 °C is prone to embrittlement due to the formation of σ-phase.

    Standards

    Name Code Standards
    Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
    Sheets and strips В23 GOST 19903-74, GOST 103-2006, GOST 19903-90
    Processing of metals by pressure. Forgings В03 GOST 25054-81
    Sheets and strips В33 GOST 4405-75
    Classification, nomenclature and General rules В30 GOST 5632-72
    Bars and shapes В32 GOST 5949-75, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-1-377-72, TU 14-11-245-88
    Steel pipes and fittings to them В62 GOST 9940-81, GOST 9941-81, TU 14-158-135-2003, TU 14-158-137-2003, TU 14-3-1654-89
    Blanks. Of the workpiece. Slabs В21 OST 1 90176-75
    Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-565-84
    Welding and cutting metals. Soldering, riveting В05 OST 95 10441-2002
    Thermal and thermochemical treatment of metals В04 STP 26.260.484-2004

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
    GOST 5632-72 ≤0.1 ≤0.02 ≤0.035 ≤2 22-25 ≤1 17-20 Rest ≤0.3 ≤0.2 ≤0.2 ≤0.3 ≤0.2
    TU 14-158-137-2003 ≤0.1 ≤0.02 ≤0.035 ≤2 22-25 ≤1 17-20 Rest - - - - -
    Fe is the basis.
    According to TU 14-158-137-2003, cerium and other rare-earth metals can be introduced by 0.2-0.3%, which are not determined by chemical analysis.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, % HB, MPa
    Annealing in air or in water from 1100-1150 °C (samples transverse)
    ≥4 ≥175 ≥490 ≥40 ≥55 -
    0.2-22 - ≥529 ≥35 - -
    Sheets hot - and cold-rolled. Annealing in air or in water 1080-1150 °C (samples transverse)
    ≤3.9 - ≥510 ≥35 - -
    Forgings up to 1000 mm. Hardening in air or in water from 1000-1050 °C
    ≥196 ≥490 ≥35 ≥40 ≥179
    Bars hot rolled and forged according to GOST 5949-75. Annealing in air or in water 1100-1150 °C
    ≥196 ≥490 ≥35 ≥50 -
    Bars hot rolled and forged at STP 26.260.484-2004. Quenching in water or air from 1100-1150 °C
    ≥200 ≥500 ≥35 ≥40 -
    Hot-deformed seamless tubes in the delivery condition (specified wall thickness)
    3.5-32 - ≥491 ≥37 - -
    Cold-rolled tubes after austenization on delivery
    - ≥529 ≥35 - -
    Forming at OST 1 90176-75. Quenching in water or air from 1100-1150 °C
    ≥216 ≥569 ≥35 ≥50 -

    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
    HB Brinell hardness number

    Physical characteristics

    Temperature r, kg/m3
    0 7950

    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 recommended for NPP equipment for automatic arc welding submerged arc, manual arc welding with coated electrodes, combined welding methods
    Склонность к отпускной хрупкости inclined
    Features of heat treatment Steel products, designed for operation in conditions of increased requirements for heat resistance and heat resistance, are subjected to quenching in water or air at 1100-1150 °C. the holding Time at the heating for hardening to products with a wall thickness up to 10 mm - 30 min, over 10 mm - 20 min + 1 min per 1 mm maximum thickness.