Alloy KHN70JU-N

  • Alloy Kh20H80-H
  • Alloy KhN70Yu-N
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  • Alloy Х23Ю5А (0Х23Ю5А)
  • Alloy Kh23Yu5 (EI595)
  • Alloy Kh20H80-N-VI
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  • Alloy Kh15N60-N-VI
  • Alloy Kh15N60-H
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  • Alloy Kh13Yu4 (EI60)
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  • Alloy H50XL
  • Alloy H50K10

    • Designation

    Name The value
    Designation GOST Cyrillic ХН70Ю-Н
    Designation GOST Latin XH70Ju-H
    Transliteration HN70Yu-N
    By chemical elements CrNi70Al-Ni

    Description

    Alloy KHN70JU-N is used: for the manufacture of heaters for industrial furnaces with maximum operating temperatures up to 1200 °C; heating elements and resistance elements.

    Note

    The heat resisting alloy in an oxidizing atmosphere, hydrogen, nitrogen-hydrogen blends, vacuum; more heat resistant than zhelezomargantsevye alloys.

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В30 GOST 10994-74
    Wire, steel, alloy В73 GOST 12766.1-90, TU 14-131-820-90
    Bars and shapes В32 GOST 12766.3-90, GOST 12766.4-90, TU 14-11-245-88
    Welding and cutting metals. Soldering, riveting В05 TU 14-1-997-2012

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Al Ce Ba
    GOST 10994-74 ≤0.1 ≤0.02 ≤0.02 ≤0.3 26-28.9 ≤0.8 Rest ≤1.5 3-3.8 ≤0.03 ≤0.1
    Ni is the basis.

    Mechanical properties

    Section, mm σU, MPa d
    Wire cold-drawn heat-treated in the delivery condition according to GOST 12766.1-90 (the value is δ200)
    ≤880 ≥15

    Description mechanical marks

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

    Physical characteristics

    Temperature r, kg/m3 R, Mr. · m a, 10-6 1/°C С, J/(kg · °C)
    20 7900 1250-1350 - 460
    1000 - - 21 -

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    l Coefficient of thermal conductivity
    С Specific heat

    Technological properties

    Name The value
    Microstructure Austenitic structure.
    Magnitnoi Non-magnetic alloy.
    Operating temperature Recommended maximum working temperature of the heating element from 950 °C at a thickness of 0.2 mm to 1200 °C thickness ≥ 6.0 mm.
    Survivability Survivability at a temperature of 1200 °C for at least 100 hours.