Alloy ХН30ВМТ (ЭП437; ВЖ102)

  • Alloy 05KhN46MVBh (DI65)
  • Alloy KhN30VMT (EP437; VZH102)
  • Alloy KhN30TDU (EP655; VNS12)
  • Alloy KhN38VT (EI703)
  • Alloy KhN45TU (EK101; VKS-46)
  • Alloy KhN45Yu (EP747)
  • Alloy KhN50MVKTYR (EP99)
  • Alloy CrN60VT (EI868; VZh98)
  • Alloy KhN60Yu (EI559A)
  • Alloy KhN70Yu (EI652)
  • Alloy KhN75MBTU (EI602)
  • Alloy KhN77TU (EI437A)
  • Alloy CrN78T (EI435)
  • Alloy EC79

    • Designation

    Name The value
    Designation GOST Cyrillic ХН30ВМТ
    Designation GOST Latin XH30BMT
    Transliteration HN30VMT
    By chemical elements CrNi30ВCuTe
    Name The value
    Designation GOST Cyrillic ЭП437
    Designation GOST Latin EP437
    Transliteration EhP437
    By chemical elements -
    Name The value
    Designation GOST Cyrillic ВЖ102
    Designation GOST Latin BZh102
    Transliteration VG102
    By chemical elements ВFe102

    Description

    Alloy ХН30ВМТ used: for the manufacture of heavy-gauge hot-rolled steel; special parts and aeronautical equipment; welding wire.

    Note

    Heat-resistant iron-Nickel alloy.

    Standards

    Name Code Standards
    Blanks. Of the workpiece. Slabs В31 OST 1 90158-74, OST 1 90373-87, TU 14-1-1214-75
    Welding and cutting metals. Soldering, riveting В05 TU 14-1-1004-74
    Sheets and strips В33 TU 14-1-146-71, TU 14-1-5103-92
    Processing of metals by pressure. Forgings В03 TU 14-1-1530-75, TU 14-1-2902-80
    Bars and shapes В32 TU 14-1-2212-77
    Sheets and strips В53 TU 14-1-2862-79

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu Al Ti Mo W Zr
    TU 14-1-2902-80 ≤0.1 ≤0.015 ≤0.02 ≤0.6 14-16 ≤0.6 27-30 Rest - ≤0.5 1.9-2.4 3-4 4.5-6 ≤0.02
    TU 14-1-146-71 ≤0.1 ≤0.015 ≤0.025 ≤0.6 14-16 ≤0.6 27-30 Rest ≤0.07 ≤0.5 1.8-2.3 3-4 4.5-6 ≤0.02
    TU 14-1-5103-92 ≤0.1 ≤0.015 ≤0.025 ≤0.6 14-16 ≤0.6 27-30 Rest - ≤0.5 1.8-2.3 3-4 4.5-6 ≤0.02
    Fe is the basis.
    According to TU 14-1-2902-80 the chemical composition is given for ХН30МВТ and ХН30ВМТ-ВД.
    According to TU 14-1-146-71 the chemical composition is given for ХН30МВТ (ЭП437).
    According to TU 14-1-5103-92 the chemical composition is given for ХН30МВТ (ЭП437). Boron, cerium and zirconium are introduced into the metal by calculation and chemical analysis are not determined.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
    Ring welded at OST 1 90373-87. Heating to 1150-1170 °C, exposure for 2 hours, quenching in air + Ageing at 730-750 °C for 16 hours, air cooling
    ≥618 ≥930 ≥9 ≥12 ≥250 248-332
    Steel hot-rolled sheet (6-11 mm). Quenching in water from 1080-1120 °C + Aging at 740-760 °C (delay of 12-16 h), air cooling
    4-11 ≥640 ≥930 ≥7 - - -
    Ring welded at OST 1 90373-87. Heating to 1150-1170 °C, exposure for 2 hours, quenching in air + Ageing at 730-750 °C for 16 hours, air cooling
    ≥568 ≥862 ≥6 ≥8 ≥180 -
    Steel hot-rolled sheet (6-11 mm). Quenching in water from 1080-1120 °C + Aging at 740-760 °C (delay of 12-16 h), air cooling
    4-11 - ≥690 ≥12 - - -
    Sheet. Quenching in water, in air or under water shower with 1080-1120 °C
    4-11 - 640-930 ≥30 - - -
    Forgings. Heating to 1150-1170 °C, exposure for 2 hours, air cooling + Ageing at 730-750 °C for 16 hours, air cooling
    ≥620 ≥930 ≥9 ≥14 ≥190 248-331

    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