Alloy Х25Н20 (ЭП74)

  • 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 Х25Н20
    Designation GOST Latin X25H20
    Transliteration H25N20
    By chemical elements Cr25Ni20
    Name The value
    Designation GOST Cyrillic ЭП74
    Designation GOST Latin EP74
    Transliteration EhP74
    By chemical elements -

    Description

    Alloy Х25Н20 used: for the manufacture of wire for industrial and laboratory furnaces, household appliances; elastic sensing elements, operating at temperatures up to 950 °C.

    Standards

    Name Code Standards
    Tape В34 GOST 12766-67

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Ti Zr
    GOST 12766-67 ≤0.15 ≤0.02 ≤0.03 ≤2 24-27 ≤1 17-20 Rest ≤0.3 ≤0.5
    Fe is the basis.
    According to GOST 12766-67 the chemical composition is given for the alloy grade X25N20. The presence in the alloy of residual rare-earth elements, as well as barium and calcium, is not a defective feature.

    Physical characteristics

    Temperature R, Mr. · m
    20 830-960

    A description of the physical symbols

    Name Description
    R UD. the resistivity

    Technological properties

    Name The value
    Okalinolomatel, heat resistance Onlinetony alloy in an oxidizing atmosphere, hydrogen, vacuum; unstable in an atmosphere containing sulfur and sulfur compounds; more heat resistant than khro-melaminovye alloys.
    Operating temperature The working temperature of heating element: Optimal 900 °C, maximum 1000 °C.