Steel 55S2GF

Designation

Name The value
Designation GOST Cyrillic 55С2ГФ
Designation GOST Latin 55C2GF
Transliteration 55S2GF
By 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
Bars and shapes 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 Rest ≤0.2 0.1-0.15
Fe is the basis.

Mechanical properties

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