Designation
| Name |
The value |
| Designation GOST Cyrillic |
85ГФ |
| Designation GOST Latin |
85GF |
| Transliteration |
85GF |
| By chemical elements |
85MnV |
Description
85ГФ steel is used: for the manufacture of parts of agricultural machines.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В32 |
TU 14-1-5005-91, TU 14-1-5006-91 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Si |
Fe |
V |
| TU 14-1-5005-91 |
0.75-1 |
≤0.03 |
≤0.03 |
0.5-1 |
0.5-0.8 |
Rest |
0.45-0.8 |
Fe is the basis.
According to TU 14-1-5005-91 allowable deviations in chemical composition in finished rolled products and mass fraction of residual elements - in accordance with GOST 4543.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
HB, MPa |
| Steel gauged round rods with a diameter of 25 mm heat-treated in the delivery condition on the other 14-1-5005-91 |
|
≥390 |
≥640 |
≥15 |
≥35 |
≤229 |
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 |
| HB |
Brinell hardness number |
