Alloy 42NKHTJUA (Н41ХТА)

  • 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 42НХТЮА
    Designation GOST Latin 42HXTJuA
    Transliteration 42NHTYuA
    By chemical elements 42NiCrTeAl
    Name The value
    Designation GOST Cyrillic Н41ХТА
    Designation GOST Latin H41XTA
    Transliteration N41HTA
    By chemical elements Ni41CrTe

    Description

    Alloy 42NKHTJUA used: for the manufacture of hair spirals clockworks.

    Note

    Alloy precipitation hardening with a minimum temperature coefficient of the modulus of elasticity, providing temperature error hair spirals hours (balance-balance) of less than 0.3 s/°C·day, time, resistance, 1080−1375 MN/m2 (110−140 kgf/mm2).

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В30 GOST 10994-74
    Wire, steel, alloy В73 TU 14-1-2642-79
    Bars and shapes В32 TU 14-1-799-73, TU 14-11-245-88

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Al Ti
    TU 14-1-799-73 ≤0.05 ≤0.02 ≤0.02 0.4-0.8 4.9-5.7 0.3-0.8 41.5-43.5 Rest 0.5-1 2.2-3
    GOST 10994-74 ≤0.05 ≤0.02 ≤0.02 0.3-0.6 5-5.6 0.4-0.7 41.5-43.5 Rest 0.6-1 2.3-2.9
    Fe is the basis.
    According to GOST 10994-74, TU 14-1-799-73 the chemical composition is given for the alloy grade 42НХТЮА (Н41ХТА).

    Mechanical properties

    Section, mm σU, MPa d5, %
    Hire. Annealing in air at 910 °C + Aging at 700 °C
    1300-1400 ≥5

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    d5 Elongation after rupture

    Technological properties

    Name The value
    Macrostructure and pollution Macrostructure of steel to transverse the etched templeto should not be visible without using the magnifying devices of the traces of shrinkage, bubbles, cracks, and slag inclusions.
    Particularities of production of goods Rod on the other 14-1-799-73 comes in heat-treated according to the mode of supplying plant. On the rod surface permitted surface defects such as cracks, sunsets, shells, bundles, wooloowin, shells, dents, nicks, scratches, scratchy, if their depth does not exceed half the tolerance on the diameter.