Alloy 44NKHTJU

  • Alloy 40KHNM (EI995)
  • Alloy 97NL (EI996)
  • Alloy 95NLM (EI996M)
  • Alloy 95NLVF (EI996V)
  • Alloy 68NKHVKTU (EP578)
  • Alloy 46NKhT (EP619)
  • Alloy 45NHT (EP218)
  • Alloy 44NCTU
  • Alloy 42NKhTUA (H41KhTA)
  • Alloy 42NKHTU (42NKHTUA)
  • Alloy 40KHMVTU
  • Alloy 36KhNTU (EI702)
  • Alloy 36NKhTYu8M (EP52)
  • Alloy 36NKhTU5M (EP51)
  • Alloy 36NKhTU (EI702)
  • Alloy 21NKMT (VES-130)
  • Alloy 17KhNGT (EI814)
  • Alloy 12KhNKMTU (SP22)

    • Designation

    Name The value
    Designation GOST Cyrillic 44НХТЮ
    Designation GOST Latin 44HXTJu
    Transliteration 44NHTYu
    By chemical elements 44NiCrTeAl

    Description

    Alloy 44NKHTJU used: for the manufacture of elastic and provocatively elements operating at temperatures up to +200 °C.

    Note

    Alloy dispersion-hardening with low temperature coefficient of modulus of elasticity up to 180−200 °C (15·10-6 1/°C).

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В30 GOST 10994-74
    Tape В34 GOST 14117-85
    Wire, steel, alloy В73 GOST 14118-85
    Bars and shapes В32 GOST 14119-85, TU 14-11-245-88
    Classification, nomenclature and General rules В20 OST 1 90005-91

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Al Ti
    GOST 10994-74 ≤0.05 ≤0.02 ≤0.02 0.3-0.6 5-5.6 0.3-0.6 43.5-45.5 Rest 0.4-0.8 2.2-2.7
    Fe is the basis.

    Mechanical properties

    Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d d10 y, % KCU, kJ/m2 HB, MPa HRC
    Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
    - - - ≥1270 - - - - - -
    Cold-rolled steel strip (samples) in the delivery state according to GOST 14117-85. Quenching in water from 900-920 °C + Aging at 680-700 °C (extract 3 hours)
    0.1-0.9 - - ≥1030 ≥5 - - - - -
    1-2 - ≥685 ≥1080 ≥8 - - - - ≥30
    Cold-rolled steel strip as supplied by GOST 14117-85
    0.1-2 - - ≥800 - - - - - -
    Cold-rolled steel strip as supplied by GOST 14117-85. Aging (in the graph, the temperature of leave is specified aging temperature and aging time)
    - 680-700, 3ч - - - - - - - -
    - 650-675, 1-2ч 1080-1270 1230-1370 ≥3 - - - - -
    Cold drawn wire in the delivery state according to GOST 14118-85. Aging at 600-700 °C (exposure 1-2 h), air cooling
    0.2-7 - - ≥1370 - - - - - -
    0.2-7 - - - - - - - -
    Bars and rods, hot-rolled, forged and with special surface finish GOST 14119-85. Quenching in water from 900-920 °C + Aging at 680-700 °C (extract 3-4 hours), air cooling
    8-120 - ≥635 ≥980 - ≥15 ≥25 ≥690 300-320 -

    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
    d Elongation after rupture
    d10 Elongation after rupture
    y The relative narrowing
    KCU Toughness
    HB Brinell hardness number
    HRC Rockwell hardness (indenter diamond spheroconical)