Steel 08KH17T (ЭИ645)

  • Steel 10Х15Н27Т3МР (EP700)
  • Steel 08Cr17T (EI645)
  • Steel 08Cr18Ni10 (EI119)
  • Steel 08Cr18Ni10T (EI914)
  • Steel 08X18T1 (0X18T1)
  • Steel 08Х20Н14С2 (ЭИ732)
  • Steel 09Cr18Ni10T (1Cr18Ni10T)
  • Steel 10Х13Г18Д (DI-61; 12Х13Г18Д)
  • Steel 06X18H10T (06X18H10)
  • Steel 12X17 (X17)
  • Steel 12Х20Н14С2 (ЭИ732)
  • Steel 13Х13С2М2 (ЭИ852)
  • Steel 15X25T (EI439)
  • Steel 15X28 (EI349)
  • Steel 20Х20Н14С2 (ЭИ211)
  • 4X18H2M steel (EP378)
  • Steel 06X20H14C2
  • Steel 06Х18Г9Н5АБ (06Х18Г5Н5АБ; ЧС51)
  • Steel 06Х16Н2К5ФМБ (EP875; VNS-26)
  • 05Cr18Ni10T (0Cr18Ni10T) steel
  • Steel 03X20Yu3NTB (KO-4)
  • Steel 03Cr18Ni10T (03Cr18Ni10T; Cr18Ni10T)
  • Steel 03Х17Н8Г5МФАБ (VNS-31)
  • Steel 03Х11Н8М2Ф (DI52)
  • Steel 01Х25ТБЮ (ChS76; 01Х25ТБ)
  • Steel 01X25T (ChS75)
  • Steel 01X25M2T (ChS78)
  • Steel 01X13MBSch (EP933)
  • Steel 01X18T (ChS74)
  • Steel 01X18M2T (ChS77)
  • Steel 01X18 (ChS86)
  • Steel 015Cr18M2B (EP882)

    • Designation

    Name The value
    Designation GOST Cyrillic 08Х17Т
    Designation GOST Latin 08X17T
    Transliteration 08H17T
    By chemical elements 08Cr17Ti
    Name The value
    Designation GOST Cyrillic ЭИ645
    Designation GOST Latin EI645
    Transliteration EhI645
    By chemical elements -

    Description

    Steel 08KH17T used: for the production of chemical equipment; products, operating in oxidizing environments and at atmospheric conditions, in addition to marine atmosphere, in which pitting corrosion; heat exchangers, pipes; welded structures, not exposed to shock loads and operate at temperatures below -20 °C; food processing equipment, Breweries, soap and light industries; as a cladding layer in the manufacture of hot-rolled dual-layer corrosion-resistant sheets.

    Note

    Steel heat-resistant, corrosion-resistant ferritic class.
    Temperature intense scaling in air +900 °C.
    Steel 08KH17T used as a substitute for steel 12KH18N9T and 12KH18N10T, for the same purpose as the steel 12X17, including for welded structures.

    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
    Sheets and strips В33 GOST 4405-75, GOST 5582-75, GOST 7350-77, GOST 10885-85, TU 14-1-4780-90
    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 14-11-245-88, TU 14-1-1271-75
    Steel pipes and fittings to them В62 GOST 9940-81, GOST 9941-81, TU 14-3-1654-89
    Blanks. Of the workpiece. Slabs В31 OST 3-1686-90
    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 ≤0.08 ≤0.025 ≤0.035 ≤0.8 16-18 ≤0.8 ≤0.6 Rest ≤0.3 ≤0.2 0.4-0.8 ≤0.3 ≤0.2
    Fe is the basis.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
    Seamless hot deformed tubes in the delivery condition
    - ≥372 ≥17 - -
    Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Annealing or vacation at 740-780 °C
    - - ≥460 ≥20 - -
    Rolled steel. Heating to 760 °C, air cooling
    - - ≥460 ≥30 - -
    Hot rolled sheet (of 1.5-3.9 mm) and cold rolled (0,7-3,9 mm) steel according to GOST 5582-75. Annealing at 830-860 °C, air cooling or Normalizing at 960-1000 °C, air cooling
    - - ≥460 ≥30 - -
    Rolled steel. Heating to 760 °C, air cooling
    - - ≥59 ≥111 - -
    Hot rolled sheet (4,0-25,0 mm) and cold rolled (4,0-5,0 mm) steel according to GOST 7350-77. Annealing or vacation at 760-780 °C, air cooling
    - - ≥440 ≥18 - -
    Rolled steel. Heating to 760 °C, air cooling
    - - ≥59 ≥90 - -
    Bars hot rolled and forged at STP 26.260.484-2004. Annealing at 760-780 °C, cooling in water
    ≥250 ≥450 ≥18 ≥45 ≥490
    Rolled steel. Heating to 760 °C, air cooling
    - - ≥78 ≥54 - -
    - - ≥155 ≥37 - -
    Tubes seamless cold - and warm. Annealing at 760-780°C, air cooling
    ≥300 ≥500 ≥20 ≥45 -
    Rolled steel. Heating to 760 °C, air cooling
    - - ≥195 ≥36 - -
    - - ≥245 ≥35 - -
    - - ≥280 ≥33 - -
    - - ≥330 ≥32 - -
    - - ≥390 ≥31 - -
    - - ≥59 ≥110 - -

    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

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m a, 10-6 1/°C С, J/(kg · °C)
    0 206 7700 25 600 - -
    20 206 7700 25 600 - -
    100 - - - - 10 462
    200 - - - - 10 -
    300 - - - - 105 462
    400 - - - - 105 -
    500 - - - - 105 -
    700 - - - - 11 -

    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 Ogranichennaya steel. Satisfactory mechanical properties can be obtained in welding articles having a thickness up to 2-3 mm. For automatic arc welding under flux an-26 and ANF-14 used wire SV-08Х20Н9Г7Т SV-05Х25Н12ТЮ.
    Склонность к отпускной хрупкости inclined at a temperature of 475 °C during long exposures.
    The temperature of forging Beginning - 1220 °C, the end of - 900 °C. the cross Sections up to 350 mm cooled in air.
    Features of heat treatment Steel products ferritic to eliminate the tendency to intergranular corrosion and maximum plasticity should be heated to 760-780 °C, aging at the rate of 30 min + 1 min per 1 mm maximum material thickness, cooling in water. Weldment from steel 08KH17T should be subjected to annealing at 720-780 °C for 1-2 h, air cooling. Not allowed to leave the products at 450-550 °C, since this leads to the "475 ° embrittlement".