Designation
| Name |
The value |
| Designation GOST Cyrillic |
120Г13 |
| Designation GOST Latin |
120G13 |
| Transliteration |
120G13 |
| By chemical elements |
120Mn13 |
| Name |
The value |
| Designation GOST Cyrillic |
ЭИ256 |
| Designation GOST Latin |
EI256 |
| Transliteration |
EhI256 |
| By chemical elements |
- |
Description
120Г13 steel is used: for the production of semi-finished products (rods, strips, sheets), intended for the manufacture of a variety of highly wear-resistant parts of equipment is heavy and power engineering.
Note
Vysokoorganizovannaja steel.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В32 |
TU 14-1-1614-76 |
| Sheets and strips |
В33 |
TU 14-1-2670-79, TU 14-1-2866-79 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
| TU 14-1-1614-76 |
1-1.4 |
≤0.03 |
≤0.1 |
11-14 |
≤0.5 |
≤0.7 |
≤0.6 |
Rest |
≤0.3 |
Fe is the basis.
According to TU 14-1-1614-76 for steel grade 120G13 (EI256), deviations are allowed: for carbon ± 0.010%, for manganese ± 0.050%. Upon agreement with the consumer, the specification of the chemical composition established by the TU data is allowed.
Technological properties
| Name |
The value |
| Macrostructure and pollution |
The macrostructure of the steel on the other 14-1-1614-76 must meet the requirements of GOST 5949. On the surface of bars and strips should be free of flaws, cracks and the prisoner visible to the naked eye. |
| Particularities of production of goods |
On the other 14-1-1614-76 hire comes after heat treatment (tempered condition) with austenitic structure. The hardness of the steel should be no more than 217 HB (indentation diameter is not less than 4.10 mm). Hot rolled round bars and rods are supplied according to GOST 2590, forged round - GOST 1133, hot-rolled and forged bars - according to GOST 4405, GOST 103. |
