Steel 20KH1M1F1TR (ЭП182)

  • Steel 15Kh5M (X5M)
  • 30Cr3MA steel
  • 30Kh3VA steel
  • Steel 25X5M
  • Steel 25Kh3MFA-A
  • Steel 25Kh3MFA (48TS-4)
  • Steel 25Kh2MFA (48TS-1)
  • Steel 25Kh2M1F (EI723)
  • Steel 25Х1МФ (ЭИ10)
  • Steel 20Х3МВФ (ЭИ415)
  • Steel 20Х1М1Ф1ТР (EP182)
  • Steel 18Kh3MV (EI578)
  • Steel 18Kh2MFA-A
  • Steel 18Kh2MFA (48TS-3)
  • 15CrM Steel
  • Steel 15X5VF (X5VF)
  • Steel 15X5 (X5)
  • Steel 15Kh2MFA-A
  • Steel 15Kh2MFA (48TS-3-40)
  • Steel 13X9M (X9M)
  • Steel 13Х3Н3М2ВФБ (VKS-10)
  • 12XM steel
  • Steel 12Kh8VF (1Kh8VF)
  • Steel 12X8 (1X8)
  • Steel 12Kh2MFA-A
  • Steel 12Х2МФА (48ТС-2)
  • Steel 12Kh1MF (12KhMF; 12KhMFA)
  • 12MX steel
  • Steel 08Х16Н9М2

    • Designation

    Name The value
    Designation GOST Cyrillic 20Х1М1Ф1ТР
    Designation GOST Latin 20X1M1F1TP
    Transliteration 20H1M1F1TR
    By chemical elements 20Cr1Mo1V1TiB
    Name The value
    Designation GOST Cyrillic ЭП182
    Designation GOST Latin EP182
    Transliteration EhP182
    By chemical elements -

    Description

    Steel 20KH1M1F1TR used: for the production of fasteners with special operating characteristics; fasteners turbines and flange connections, steam pipes and equipment and parts with operating temperature up to 500−580 °C.

    Note

    Steel pearlitic class.

    Standards

    Name Code Standards
    Sheets and strips В23 GOST 103-2006
    Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006
    Sheets and strips В33 GOST 4405-75
    Bars and shapes В32 GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, GOST 20072-74, TU 14-1-552-72, TU 14-11-245-88
    Processing of metals by pressure. Forgings В03 TU 0306.018-80, ST ЦКБА 010-2004

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu V B Ti Mo W
    GOST 20072-74 0.17-0.24 ≤0.03 ≤0.03 ≤0.5 0.9-1.4 ≤0.37 ≤0.3 Rest ≤0.2 0.7-1 ≤0.005 0.05-0.12 0.8-1.1 ≤0.2
    TU 14-1-552-72 0.17-0.24 ≤0.03 ≤0.03 ≤0.5 0.9-1.4 ≤0.35 ≤0.5 Rest ≤0.3 0.7-1 ≤0.005 0.05-0.12 0.8-1.1 -
    Fe is the basis.
    According to GOST 20072-74, when steel is scrap-process, the content of Cu ≤ 0.30%. Tungsten is allowed up to 0.20%. When smelting steel by the method of electroslag remelting, the mass fraction of sulfur should not be more than 0.015%.
    According to TU 14-1-552-72, the chemical composition is given for steels of 20X1M1F1TR (EP182) and 20X1M1F1TR-III (EP182-SH) grades.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
    Bars hot rolled and forged (12-180 mm). Quenching in oil with 970-990 °C to + Leave at 680-720 °C, air cooling
    ≥670 ≥780 ≥15 ≥50 ≥590
    Rolled steel. Quenching in oil with 980°C + Vacation at 700 °C (exposure 5-7 hours)
    ≥700 ≥800 ≥15 ≥60 ≥600
    Rolled steel. Normalization at 960-980 °C, cooling in oil + Vacation at 700-750 °C, air cooling
    ≥255 ≥470 ≥21 ≥55 ≥980

    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) a, 10-6 1/°C
    20 215 7850 - -
    100 212 - 423 -
    200 208 - 406 12
    300 202 - 402 123
    400 194 - 398 1285
    500 183 - 394 13
    600 174 - 389 135
    700 153 - 385 1355
    800 - - 381 -

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    r Density
    l Coefficient of thermal conductivity
    R UD. the resistivity