Alloy 20ХГСН2МФА (ДИ107)

  • Steel 35KhSN3M1A (VKS-8)
  • Steel 30Kh2GSN2VM (30Kh2GSN2M1; VL-1)
  • Steel 30Kh2GSNVM (VL-1D)
  • Steel 30Х2Н2СВМФА (VKS-3)
  • Steel 30KhGSN2A (30KhGSNA)
  • Steel 30KhGSN2MA (30KhGSNMA)
  • Steel 30ХН3М1ФА (30ХН3М1Ф)
  • Steel 30ХН3М2ФА (30ХН3М2Ф)
  • Steel 32KhN8M1FK5A (VKS-6)
  • Steel 34KhMA (34KhM)
  • Steel 34KhN3MA (0KhN3M)
  • Steel 35KhMA (35KhMAR)
  • Steel 35KhN1M2FA
  • Steel 35KHN3MFA (35KHN3MFAR)
  • Steel 35ХС2Н3М1ФА (VKS-9)
  • Steel 28ХНН3МФА (28ХН3МФ)
  • Steel 36KHN3MFA (36KHN3MF)
  • Steel 38Kh3SNMVFA (SP38)
  • 38KhMFYUA steel
  • 38KhN3MFA steel (38KhN3MF)
  • 40GMFR steel
  • Steel 40KhN2SVA (EI643)
  • Steel 40KhN2SMA (EI643M)
  • Steel 42Kh2GSNM (VKS-1)
  • 43Kh3SNMVFA steel (SP43)
  • Steel 45Г15Н9Х2ЮФ (EP769)
  • 45Kh3NM2FA steel
  • Steel АЦ28ХГН2АФБ
  • Steel АЦ28ХГН3ФТ
  • B2G steel
  • X11MNAFB steel
  • 20KhGSNM steel
  • Steel 01N17K12M5T (EP845; VKS-240)
  • Steel 02N18K9M5T (EP637A; VKS-210)
  • Steel 03N18K8M5T (VKS-170; EK21)
  • Steel 03N19K6M5TR (EP631)
  • Steel 03Cr14H7V
  • Steel 08Х15Н25Т2МФР (EP674)
  • Steel 09Х16НМ2Д (EP887; VNS28)
  • Steel 120G13 (EI256)
  • 12Kh3GNMFBA steel
  • Steel 15Х16Н3КАМФ2 (VNS-47; EK81)
  • 15Kh2GMF steel
  • 15Kh2NMFA steel
  • Steel 16X16H3MAD (EP811; VSN21)
  • Alloy 20ХГСН2МФА (DI107)
  • Steel 28Kh3SNMVFA (SP28; EP326A)
  • Steel 25Х12Н2В2М2Ф (EP311; VNS-6)
  • Steel 25Х20Н9В2М (EP466)
  • Steel 25Kh2GNTA
  • Steel 25Х2ГНТРА
  • Steel 25Х2Н4МФА
  • Steel 25Kh2NMF (25Kh2NMFA)
  • Steel 25KhGSNMA
  • Steel 25KhN3MFA (25KhN3MFAR)
  • Steel 25ХСНВФА (VP25)
  • Steel 26ХН3М2ФА (26ХН3М2ФАA)
  • Steel 26KhN3MF (26KhN3MFA)
  • Steel 26KhN4MF (26KhN4MFA)
  • Steel 27ХН3М2ФА (27ХН3М2Ф)
  • Steel 27ХН3МФА (27ХН3МФ)

    • Designation

    Name The value
    Designation GOST Cyrillic 20ХГСН2МФА
    Designation GOST Latin 20XGCH2MFA
    Transliteration 20HGSN2MFA
    By chemical elements 20CrGePbNi2CuP
    Name The value
    Designation GOST Cyrillic ДИ107
    Designation GOST Latin DI107
    Transliteration DI107
    By chemical elements ДIr107

    Description

    Alloy 20ХГСН2МФА used: for the manufacture of long products and forgings; loaded and the most critical parts of the aircraft.

    Note

    High-strength steel, structural, high quality, bromocinnamaldehyde.

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В20 OST 1 90005-91
    Blanks. Of the workpiece. Slabs В31 TU 1-92-156-90

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa HRC
    Forgings. Quenching in oil with 890-910 °C + Vacation at 200-250 °C (extract 3 hours), air cooling
    ≥1080 1320 ≥10 ≥50 ≥735 - -
    Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
    - - 1230-1420 - - - 353-401 38-43
    - - 1230-1470 - - - - 38-43.5
    - - 1320-1520 - - - 376-429 40-44

    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
    HRC Rockwell hardness (indenter diamond spheroconical)