Alloy 47ND (47ND-VI)

  • Alloy 36H
  • Alloy 80HMV (80HMVX3)
  • Alloy 58H (EI792)
  • Alloy 52H (EI676; 52H-VI)
  • Alloy 48NH (EI693)
  • Alloy 47NHR
  • Alloy 47NH (EI563)
  • Alloy 47ND (47ND-VI)
  • Alloy 47H3X
  • Alloy 42NA-VI (EP333)
  • Alloy 42H (EP318; 42NA)
  • Alloy 40K27KhNM with tantalum
  • Alloy 39H
  • Alloy 38NKD (38NKD-VI)
  • Alloy 36NH (EP713)
  • Alloy 35NKT
  • Alloy 35NKG (EK53)
  • Alloy 34NKD
  • Alloy 33HX3 (EP547)
  • Alloy 33NK (33NK-VI)
  • Alloy 32NKh3 (EP546)
  • Alloy 32NKD (EI630A)
  • Alloy 32NK (EP475)
  • Alloy 31NH3G (EP545)
  • Alloy 30NKD (30NKD-VI)
  • Alloy 29NK (29NK-VI)
  • Alloy 18KhTF
  • Alloy 18KhMTF

    • Designation

    Name The value
    Designation GOST Cyrillic 47НД
    Designation GOST Latin 47HD
    Transliteration 47ND
    By chemical elements 47NiД
    Name The value
    Designation GOST Cyrillic 47НД-ВИ
    Designation GOST Latin 47HD-BI
    Transliteration 47ND-VI
    By chemical elements 47NiД-ВIr

    Description

    Alloy 47ND applies: for soldering with soft glass brands С93−4, С93−2, С95−2, С94- 1, C90−1, C90−2, etc.; to connect with ceramics and mica, for springs of hermetic contacts.

    Note

    Alloy with an average value of CTE.
    Alloy with a CTE (9,0−11,0)·10-6 deg-1 in the temperature range from -70 to + 440 °C With high permeability and saturation induction of 1.4 T.

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В30 GOST 10994-74
    Tape В34 GOST 14080-78, TU 14-1-4312-87
    Wire, steel, alloy В73 GOST 14081-78
    Bars and shapes В32 GOST 14082-78, TU 14-11-245-88
    Sheets and strips В33 TU 14-1-3727-84
    Blanks. Of the workpiece. Slabs В31 TU 14-1-3904-84

    Chemical composition

    Standard C S P Mn Si Ni Fe Cu
    GOST 10994-74 ≤0.05 ≤0.015 ≤0.015 ≤0.4 ≤0.3 46-48 Rest 4.5-5.5
    Fe is the basis.

    Mechanical properties

    Section, mm σU, MPa d4
    Cold-rolled strips of alloy 47ND brands; 47ND-VI according to GOST 14080-78 on delivery
    0.3-2.5 490-610 ≥23
    0.02-2.5 ≤930 -

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    d4 Elongation after rupture

    Physical characteristics

    Temperature r, kg/m3 a, 10-6 1/°C
    20 8200 -
    -100 - 109
    -80 - 109
    -60 - 108
    -40 - 106
    -20 - 105
    100 - 102
    200 - 99
    300 - 98
    400 - 99
    500 - 104
    600 - 114
    700 - 122
    800 - 129

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    l Coefficient of thermal conductivity
    a The coefficient of linear expansion

    Technological properties

    Name The value
    The temperature of the inflection point ≥420 °C