Steel 70Г2

Designation

Name The value
Designation GOST Cyrillic 70Г2
Designation GOST Latin 70G2
Transliteration 70G2
By chemical elements 70Mn2

Description

70Г2 steel is used: for the manufacture of springs of different machines and mechanisms in various industries; knives earthmoving machinery (bulldozers, scrapers, graders and graders, as well as to the dozer and grader blades equipment excavators, rollers and other earth moving machines).

Standards

Name Code Standards
Bars and shapes В22 GOST 17152-89

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 17152-89 (ИСО 7129-82 0.65-0.75 ≤0.045 ≤0.045 1.4-1.8 ≤0.3 0.17-0.37 ≤0.3 Rest ≤0.3
Fe is the basis.
According to GOST 17152-89 (ISO 7129-82), upon the manufacturer's agreement with the consumer, the profiles are made with the content of elements: C = 0.60-0.90%, Mn = 1.20-2.00%. The upper limits of carbon and manganese should not coincide. The austenitic grain size should not be larger than 5 numbers in accordance with GOST 5639.