Steel 015ZHRU (ЭП355)

  • Steel 015ZHRU (EP355)

    • Designation

    Name The value
    Designation GOST Cyrillic 015ЖРЮ
    Designation GOST Latin 015ZhPJu
    Transliteration 015GRYu
    By chemical elements 015ЖBAl
    Name The value
    Designation GOST Cyrillic ЭП355
    Designation GOST Latin EP355
    Transliteration EhP355
    By chemical elements -

    Description

    015ZHRU steel is used: for the manufacture after heat treatment the cores of transformers, relay parts, components of electric and magnetic induction devices.

    Note

    The low carbon steel.

    Standards

    Name Code Standards
    Secondary ferrous metals and waste В17 TU 14-1-1491-75

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu Al Ti
    TU 14-1-1491-75 ≤0.015 ≤0.002 ≤0.015 ≤0.2 ≤0.1 ≤0.2 ≤0.2 Rest ≤0.25 0.02-0.05 0.09-0.12
    Fe is the basis.

    Technological properties

    Name The value
    Particularities of production of goods Steel is produced in the form of sheets with thickness of 0.2-4 mm. in not annealed condition with a mediocre magnetic properties. High magnetic properties (permeability, saturation induction, etc.) the material acquires as a result of special heat treatment, which is a slow heating to 900 °C, prolonged exposure (2-4 hours) and slow cooling (not more than 40 °C per hour) to 600 °C. To prevent oxidation of the material of the entire cycle is either in a protective environment, protecting the metal from oxidation, or in the active medium (nitrogen + hydrogen), leading to further purification of steel from impurities. In the result of heat treatment, in addition to cleaning the material there is an increase in the size of individual crystal grains, reducing the number of grains per unit volume and consequently improving the magnetic properties of the material.