By visiting this site, you accept the use of cookies. More about our cookie policy.

Steel 70G

Designation

Name The value
Designation GOST Cyrillic 70Г
Designation GOST Latin 70G
Transliteration 70G
The chemical elements 70Mn

Description

Steel 70G 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); measuring tapes; quenched and tempered carded a round wire and shaped steel used for the manufacture of brackets needle products.

Note

Steel spring alloy.

Standards

Name Code Standards
Sectional and shaped rolling В32 GOST 14959-79, TU 14-1-2118-77, TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008
Sheets and stripes В33 GOST 1577-93, TU 14-1-2004-77, TU 14-1-2946-80, TU 14-1-4118-86, TU 14-1-4118-2004
Tapes В34 GOST 2283-79
Low-carbon steel wire В71 GOST 3875-83
Sheets and stripes В23 GOST 82-70
Sectional and shaped rolling В22 GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 9234-74, GOST 11474-76, GOST 17152-89
Steel wire medium- and high-carbon В72 GOST 9389-75, GOST 26366-84

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 14959-79 0.67-0.75 ≤0.035 ≤0.035 0.9-1.2 ≤0.25 0.17-0.37 0.25 The rest ≤0.2
GOST 17152-89 (ИСО 7129-82 0.67-0.75 ≤0.035 ≤0.035 0.9-1.2 ≤0.25 0.17-0.37 0.25 The rest ≤0.2
Fe is the basis.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % d4 d10 y, %
Carden wire 0.2-0.8 mm as supplied by GOST 3875-83 (samples)
- - 2160-2350 - - - -
- - 2351-2550 - - - -
Cold-rolled steel strip of 0.1-4.0 mm according to GOST 2283-79 on delivery
0.1-4 - 740-1180 - - - -
0.1-1.5 - ≤640 - ≥15 - -
1.5-4 - ≤740 - ≥10 - -
1.5-4 - ≤640 - ≥10 - -
Flats on the other 14-1-4118-2004
- 640-880 - ≥8 ≥10 -
Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Hardened in oil from 830 °C to + vacation at 470 °C
≥835 ≥1030 ≥7 - - ≥25

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
d4 Elongation after rupture
d10 Elongation after rupture
y The relative narrowing

Our consultant will save your time

+49(1516) 758 59 40
Telegram:
WhatsApp:

Subscription

Special offers and discounts. :)