Designation
Name |
The value |
Designation GOST Cyrillic |
12Г2СМФАЮ |
Designation GOST Latin |
12G2CMFAJu |
Transliteration |
12G2SMFAYu |
By chemical elements |
12Mn2СMoVNAl |
Description
Steel 12Г2СМФАЮ used: to manufacture the welded metal structures; superstructures of railway bridges.
Standards
Name |
Code |
Standards |
Sheets and strips |
В23 |
TU 14-1-1308-75 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
Al |
V |
Mo |
TU 14-1-1308-75 |
0.09-0.15 |
≤0.035 |
≤0.035 |
1.3-1.7 |
≤0.3 |
0.4-0.7 |
≤0.3 |
Rest |
≤0.3 |
0.015-0.03 |
0.05-0.1 |
0.07-0.15 |
0.15-0.25 |
Fe is the basis.
Mechanical properties
Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
KCU, kJ/m2 |
Rolled sheet. Hardening + vacation |
10-36 |
685 |
590 |
14 |
340 |
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 |
KCU |
Toughness |