Steel 3421 (Э340)

Designation

Name The value
Designation GOST Cyrillic 3421
Designation GOST Latin 3421
Transliteration 3421
By chemical elements 3421
Name The value
Designation GOST Cyrillic Э340
Designation GOST Latin E340
Transliteration Eh340
By chemical elements -

Description

3421 steel is used: for the manufacture of rolled products, designed for magnetic circuits of electrical apparatus and appliances.

Note

Class 3 — cold-rolled anisotropic steel with Rebrovo structure.
Mass fraction of silicon 2,80−3,80%.
Group 2 — specific losses with magnetic induction of 1.5 T and frequency of 400 Hz (R1,5/400).

Standards

Name Code Standards
Classification, nomenclature and General rules В30 GOST 21427.0-75
Tape В34 GOST 21427.4-78

Chemical composition

Standard Si Fe
GOST 21427.0-75 2.8-3.8 Rest
Fe is the basis.
According to GOST 21427.0-75 the chemical composition of steel is not standardized.