Alloy KH23JU5 (ЭИ595)

  • Alloy Kh20H80-H
  • Alloy KhN70Yu-N
  • Alloy CrN20YUS (EC11)
  • Alloy X40H60
  • Alloy Kh27Yu5T (EI626)
  • Alloy Х27Ю5А (0Х27Ю5А)
  • Alloy Kh25H20 (EP74)
  • Alloy X23Yu5T
  • Alloy Х23Ю5А (0Х23Ю5А)
  • Alloy Kh23Yu5 (EI595)
  • Alloy Kh20H80-N-VI
  • Alloy Kh20H80
  • Alloy Kh20H73YUM-VI
  • Alloy X15Yu5
  • Alloy Kh15N60-N-VI
  • Alloy Kh15N60-H
  • Alloy X15H60
  • Alloy Kh13Yu4 (EI60)
  • Alloy Н80ХЮД-VI (Н80ХЮД)
  • Alloy H50XL
  • Alloy H50K10

    • Designation

    Name The value
    Designation GOST Cyrillic Х23Ю5
    Designation GOST Latin X23Ju5
    Transliteration H23Yu5
    By chemical elements Cr23Al5
    Name The value
    Designation GOST Cyrillic ЭИ595
    Designation GOST Latin EI595
    Transliteration EhI595
    By chemical elements -

    Description

    Alloy KH23JU5 used: for the manufacture of wire and strip for industrial and laboratory furnaces, appliances and apparatus, rheostats, and glow plugs; resistive elements; electric heating devices; resistance elements.

    Note

    The heat resisting alloy in an oxidizing atmosphere containing sulfur and sulfur compounds, working with high-alumina ceramics; prone to sagging at elevated temperatures, can not withstand sudden dynamic loads.

    Standards

    Name Code Standards
    Classification, nomenclature and General rules В30 GOST 10994-74
    Wire, steel, alloy В73 GOST 12766.1-90, TU 14-1-1380-75, TU 14-131-820-90
    Tape В34 GOST 12766.2-90, GOST 12766-67
    Bars and shapes В32 GOST 12766.3-90, GOST 12766.4-90, TU 14-11-245-88

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Al Ti Ca Ce Zr
    GOST 10994-74 ≤0.05 ≤0.015 ≤0.02 ≤0.3 21.5-23.5 ≤0.6 ≤0.6 Rest 4.6-5.3 0.15-0.4 ≤0.1 ≤0.1 0.1
    GOST 12766-67 ≤0.06 ≤0.02 ≤0.025 ≤0.5 21.5-24.5 ≤0.7 ≤0.6 Rest 4.5-5.5 ≤0.3 - - ≤0.5
    Fe is the basis.
    According to GOST 10994-74 the chemical composition is presented for the alloy X23S5. In accordance with GOST 10994-74, the content of calcium and cerium is calculated. When smelting an alloy intended for the production of heating elements, fresh charge materials should be used. Waste of own marks may be used.
    According to GOST 12766-67, the chemical composition is given for the alloy grade X23Y5. The presence in the alloy of residual rare-earth elements, as well as barium and calcium, is not a defective feature.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % d y, % HB, MPa
    Cold-rolled steel strip of 0.2-3.2 mm in the delivery state according to GOST 12766.2-90
    - ≤736 ≥14 - - 180-250
    The mechanical properties of the alloy at short-term burst tests according to GOST 12766-67. Quenching in water from 760 °C (exposure 30 minutes)
    - ≥540 ≥647 - ≥23 ≥72 -
    Wire cold-drawn heat-treated in the delivery condition according to GOST 12766.1-90 (the value is δ200)
    - ≤740 - ≥12 - -
    The mechanical properties of the alloy at short-term burst tests according to GOST 12766-67. Quenching in water from 760 °C (exposure 30 minutes)
    - ≥431 ≥608 - ≥16 ≥53 -
    - ≥353 ≥373 - ≥30 ≥79 -
    - - ≥118 - ≥58 ≥94 -
    - - ≥16.67 - ≥122 ≥96 -
    - - ≥8.83 - - - -

    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
    d5 Elongation after rupture
    d Elongation after rupture
    y The relative narrowing
    HB Brinell hardness number

    Physical characteristics

    Temperature r, kg/m3 R, Mr. · m a, 10-6 1/°C С, J/(kg · °C)
    20 7250 1300-1400 - 480
    1000 - - 15 -
    1200 - - 174 -

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    r Density
    l Coefficient of thermal conductivity
    R UD. the resistivity
    С Specific heat

    Technological properties

    Name The value
    Microstructure Ferritic structure.
    Features of heat treatment After heat treatment of cold drawn wire mode: holding at 750 °C 30 min., cooling with the furnace to 150 °C, 48 h exposure, the value of temperature coefficient of electrical resistance of the AU in the temperature range from 20 to 100 °C is equal to 0,2·10-4 1/°C.
    Magnitnoi Magnetic alloy.
    Okalinolomatel, heat resistance Onlinetony alloy in an oxidizing atmosphere and in the atmosphere containing sulfur and sulfur compounds; is prone to sagging at high temperatures.
    Operating temperature The working temperature of heating element: Optimal 1150 °C, the limit of 1200 °C.
    Survivability Survivability at a temperature of 1250 °C for at least 80 hours.
    The survivability of the alloy for heating elements At least 80 hours at a test temperature of 1250 °C. the recommended maximum operating temperature of the heating element from 950 °C at a thickness of 0.2 mm to 1200 °C thickness ≥ 6.0 mm.