Designation
Name |
The value |
Designation GOST Cyrillic |
18ХГН2МФБ |
Designation GOST Latin |
18XGH2MFB |
Transliteration |
18HGN2MFB |
By chemical elements |
18CrMnН2MoVNb |
Description
18ХГН2МФБ steel is used: for manufacturing method of hot working thelongrun of parts of vehicles and mining machines.
Note
Structural steel homomorphically.
Standards
Name |
Code |
Standards |
Bars and shapes |
В22 |
GOST 2590-2006 |
Bars and shapes |
В32 |
TU 14-1-3678-84 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
V |
Mo |
Nb |
TU 14-1-3678-84 |
0.15-0.22 |
≤0.035 |
≤0.035 |
0.5-0.8 |
0.4-0.6 |
0.17-0.37 |
1.6-2 |
Rest |
≤0.25 |
≤0.016 |
0.1-0.25 |
0.4-0.6 |
0.05-0.1 |
Fe is the basis.
Mechanical properties
Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
Graded g/to hire on the other 14-1-3678-84. The annealing at 920 °C (extract 3 hours), slow cooling with the furnace to 650 °C (12h exposure) + Quenching in oil from 860 °C to + Vacation at 200 °C (extract 3 hours), air cooling |
|
≥1370 |
≥1570 |
≥12 |
≥50 |
≥1170 |
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 |
KCU |
Toughness |