Steel 75ХСМФ
Designation
| Name |
The value |
| Designation GOST Cyrillic |
75ХСМФ |
| Designation GOST Latin |
75XCMF |
| Transliteration |
75HSMF |
| The chemical elements |
75CrСMoV |
Description
75ХСМФ steel is used: for the manufacture of working rolls of sheet mills for cold rolling of metals.
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
V |
Mo |
|
0.72-0.8 |
≤0.03 |
≤0.03 |
≤0.3 |
1.2-1.5 |
0.8-1.2 |
≤0.5 |
The rest |
0.1-0.2 |
0.2-0.3 |
Fe is the basis.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Forgings. Isothermal annealing at 850 °C (aging 15 hours) + Vacation at 740 °C (exposure for 10 h), air cooling |
| 235 |
≥420 |
≥750 |
≥24 |
≥45 |
≥570 |
- |
| 250 |
- |
≥730 |
≥26 |
≥56 |
710-730 |
≤207 |
| Forgings. Annealing at 780-800 °C (exposure 6 h) + Quenching in oil with 870-890 °C + Vacation at 700-720 °C (exposure 7 h), air cooling |
| ≤400 |
- |
- |
- |
- |
- |
240-275 |
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 |
| kJ/m2 |
Toughness |
Technological properties
| Name |
The value |
| Forging temperature |
Start - 1150 °C, the end - 850 °C. |
