Alloy 70TM-VD

  • Alloy 35BT
  • Alloy 38NHM (ChS129)
  • Alloy 42KhNM (EP630U)
  • Alloy 44NHMT (EP977)
  • Alloy 46KhNM (EP630; 47KhN2M)
  • Alloy 70TM-VD
  • Steel 75N34H8G3 (EP636)
  • Alloy 95Ni (HP4)
  • Alloy BTZ-VD
  • Alloy CrN50MgYu (EC1)
  • Alloy CrN85Mu (EP797)

    • Designation

    Name The value
    Designation GOST Cyrillic 70ТМ-ВД
    Designation GOST Latin 70TM-BD
    Transliteration 70TM-VD
    By chemical elements 70TeCu

    Description

    Alloy 70TM-VD is used: for the manufacture of temperature sensors; level gauges liquid helium.

    Note

    Superconducting precision alloy.
    The alloy has a narrow superconducting transition at 4.5 K, the width is not more than 0.2 K, the upper critical field (0,2±0,02) T high specific resistivity of 1.0 μω·m, submenues with temperature (relative change it in the range -16 to +24 To less than 30%). Is made in the form of wire with diameter 0.25−0.35 mm in the copper shell.

    Standards

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

    Chemical composition

    Standard C Fe Ti Mo
    GOST 10994-74 ≤0.03 Rest 73.5-76 24-26
    Ti is the basis.
    In accordance with GOST 10994-74, the total content of rhenium and iron Re + Fe≤2.5% is also regulated.