Designation
| Name |
The value |
| Designation GOST Cyrillic |
20Г2С |
| Designation GOST Latin |
20G2C |
| Transliteration |
20G2S |
| By chemical elements |
20Mn2С |
Description
20Г2С steel is used: for the manufacture of structural shapes of high precision; flanges, housing parts, operating at temperatures from -40 °C to +475 °C under pressure; welded structures operating at temperatures down to -70 °C.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В32 |
TU 14-1-1271-75 |
| Bars and shapes |
В22 |
TU 14-1-978-74 |
Physical characteristics
| Temperature |
r, kg/m3 |
| 20 |
7850 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
Technological properties
| Name |
The value |
| Weldability |
Welded without any restrictions. Welding methods: SMAW, ADS under flux and gas protection. For manual arc welding using electrodes УОНИ13/55; for automatic submerged arc - welding wire SV-08ГА or SV-10G2 with flux an-348A; for welding in protective gases Ar and CO2 welding wire SV-08G2S. |
| Склонность к отпускной хрупкости |
Tend not. |
| The temperature of forging |
Start - 1200 °C, the end - 850 °C. |
| Flock-sensitive sensitivity |
not sensitive. |
