Alloy 97NL (ЭИ996)

  • 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 97НЛ
    Designation GOST Latin 97HL
    Transliteration 97NL
    By chemical elements 97Ni
    Name The value
    Designation GOST Cyrillic ЭИ996
    Designation GOST Latin EI996
    Transliteration EhI996
    By chemical elements -

    Description

    Alloy 97NL usedfor producing the tape, sanded rods (silverfish) and wire for the manufacture of current-carrying and weight-elastic sensing elements Aviapribor and other devices operating at temperatures up to +300 °C.

    Note

    Alloy precipitation hardening corrosion resistant with a temporary resistance 1570−1865 MN/m2 (160−190 kg/mm2), with the normal elasticity modulus 196000−206000 MN/m2 (20000−21000 kg/mm2) and low specific resistivity ≤0.35 Ω·mm2/m.

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В30 GOST 10994-74
    Bars and shapes В32 TU 14-1-436-72, TU 14-11-245-88

    Chemical composition

    Standard C S P Mn Si Ni Fe Cu Al Be
    TU 14-1-436-72 ≤0.03 ≤0.01 ≤0.01 ≤0.3 ≤0.2 Rest ≤0.5 ≤0.1 ≤0.3 2.1-2.5
    Ni is the basis.
    According to TU 14-1-436-72, the chemical composition is given for the 97NL-VI alloy (EI996).

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d d10 HRC HRB
    Tape on the other 14-1-436-72 after quenching in water from 1050-1070 °C
    ≥393 ≥785 - ≥30 - ≤90
    Tape on the other 14-1-436-72 after quenching in water from 1050-1070 °C and the dispersion hardening at 510±10 °C (extract of 1.5-2.0 CH)
    ≥687 ≥1393 - ≥3 ≥50 -
    Tape on the other 14-1-436-72 after quenching in water from 1050-1070 °C, 35% cold working and dispersion hardening at 510±10 °C (aging of 1.0-1.5 h)
    ≥1520 ≥1766 - ≥3 ≥50 -
    Wire cold-drawn at THAT 14-1-436-72 in the state of delivery: ø>1.5 mm after quenching with posleduyuschaya, ø≤1,5 mm magcaisa after heat treatment in a continuous furnace in the environment of hydrogen with subsequent deformation. The degree of deformation of the wire (shot peening) ø=4,1-7,0 mm is 60-20%, ø≤4.0 mm - 70-80% and polished bars ø=4,0-10,0 in the state of delivery on the other 14-1-436-72 after quenching with subsequent deformation of up to 35%
    - ≥981 ≥7 - - -
    Wire cold-drawn at THAT 14-1-436-72 in the state of delivery: ø>1.5 mm after quenching with posleduyuschaya, ø≤1,5 mm magcaisa after heat treatment in a continuous furnace in the environment of hydrogen with subsequent deformation. The degree of deformation of the wire (shot peening) ø=4,1-7,0 mm is 60-20%, ø≤4.0 mm - 70-80% and polished bars ø=4,0-10,0 in the state of delivery on the other 14-1-436-72 after quenching with subsequent deformation of up to 35% + of the Dispersion hardening at 510±10 °C (endurance 2.0 hours)
    - ≥1766 ≥4 - - -

    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
    HRC Rockwell hardness (indenter diamond spheroconical)
    HRB Rockwell hardness (indenter steel, spherical)