Alloy 36NKHTJU8M (ЭП52)

  • 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 36НХТЮ8М
    Designation GOST Latin 36HXTJu8M
    Transliteration 36NHTYu8M
    By chemical elements 36NiCrTeAl8Cu
    Name The value
    Designation GOST Cyrillic ЭП52
    Designation GOST Latin EP52
    Transliteration EhP52
    By chemical elements -

    Description

    Alloy 36NKHTJU8M used: for the production of cold-rolled strips and wire used in the manufacture of elastic and provocatively elements operating at temperatures up to 400 °C.

    Note

    Alloy non-magnetic corrosion-resistant dispersion-hardened with a temporary resistance 1375−1960 MN/m2 (140−200 kg/mm2) with normal elasticity modulus 196000−216000 MN/m2 (20000−22000 kgf/mm2).
    From 01.01.1991 alloy 36NKHTJU8M not allowed to use in the newly created and upgraded technology.

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В30 GOST 10994-74
    Tape В34 GOST 14117-85, TU 14-1-1373-75, TU 14-1-279-72
    Wire, steel, alloy В73 GOST 14118-85, TU 14-1-2880-80
    Bars and shapes В32 TU 14-11-245-88

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Al Ti Mo
    TU 14-1-279-72 ≤0.06 ≤0.02 ≤0.02 0.8-1.2 12-13.5 0.3-0.7 35-37 Rest 1-1.3 2.7-3.2 7.5-8.5
    GOST 10994-74 ≤0.05 ≤0.02 ≤0.02 0.8-1.2 12-13.5 0.3-0.7 35-37 Rest 1-1.3 2.7-3.2 7.5-8.5
    Fe is the basis.
    According to GOST 10994-74, the chemical composition is presented for the 36NXTU8M alloy (EP52).
    According to TU 14-1-279-72, the chemical composition is presented for the 36NXTU8M alloy (EP52). Deviations in chemical composition are allowed: for aluminum ± 0.10%, for titanium ± 0.10%.

    Mechanical properties

    Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d HRC
    Cold-rolled steel strip (samples) in the delivery state according to GOST 14117-85. Quenching in water from 1000-1050 °C + Aging at 740-760 °C (exposure 4 h)
    0.1-0.9 - - ≥1270 ≥4 -
    1-2 - ≥1030 ≥1320 ≥4 ≥42
    Cold-rolled steel strip as supplied by GOST 14117-85
    0.1-2 - - ≥1180 - -
    0.1-2 - - 980-1230 ≥1 -
    Cold-rolled steel strip as supplied by GOST 14117-85. Quenching in water from 1000-1050 °C
    0.1-2 - - ≤980 ≥15 -
    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)
    - 750, 4ч 930-1130 1270-1420 ≥3 -
    - 700-725, 2ч 1270-1420 1420-1570 ≥1 -
    - 700-725, 2-3ч 1080-1270 1320-1470 ≥2 -
    Cold-rolled steel strip on the other 14-1-279-72. Quenching in water from 1040-1060 °C (exposure during heating for quenching in an electric furnace - 2 minutes to 0.1 mm thicknesses)
    - - - ≥25 ≤28
    Cold-rolled steel strip on the other 14-1-279-72. Quenching in water from 990-1010 °C + Vacation at 750 °C (endurance 4 hours), air cooling
    - ≥1080 ≥1373 ≥5 ≥44
    Cold drawn wire in the delivery state according to GOST 14118-85. Aging at 690-710 °C (exposure 2 hours), air cooling
    0.3-5 - - ≥1570 - -
    0.3-5 - - ≥1370 - -
    Wire cold-drawn at THAT 14-1-279-72.
    0.5-5 - - ≥981 - -
    0.5-5 - - ≥1373 - -

    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
    HRC Rockwell hardness (indenter diamond spheroconical)