Steel 55S2GF
Designation
| Name |
The value |
| Designation GOST Cyrillic |
55С2ГФ |
| Designation GOST Latin |
55C2GF |
| Transliteration |
55S2GF |
| The chemical elements |
55С2MnV |
Description
55S2GF steel is used: for the manufacture of springs critical purpose of the springs of the vehicles.
Note
Steel spring alloy quality.
Standards
| Name |
Code |
Standards |
| Sectional and shaped rolling |
В32 |
GOST 14959-79, TU 14-1-2118-77, TU 14-11-245-88, TU 14-136-367-2008 |
| Steel wire medium- and high-carbon |
В72 |
GOST 26366-84 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
V |
| GOST 14959-79 |
0.52-0.6 |
≤0.035 |
≤0.035 |
0.95-1.25 |
≤0.3 |
1.5-2 |
≤0.25 |
The rest |
≤0.2 |
0.1-0.15 |
Fe is the basis.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
| Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Quenching in oil from 870 °C to + vacation at 470 °C |
|
≥1375 |
≥1570 |
≥6 |
≥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 |
| y |
The relative narrowing |
