Steel 40Х5МФ
Designation
| Name |
The value |
| Designation GOST Cyrillic |
40Х5МФ |
| Designation GOST Latin |
40X5MF |
| Transliteration |
40H5MF |
| The chemical elements |
40Cr5MoV |
Description
40Х5МФ steel is used: for the manufacture of critical parts of pressing and punching tools with high strength properties after normalization and tempering: sleeves containers, rings, press stamps, needles, and other parts operating at temperatures up to +500 °C.
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
V |
Mo |
|
0.35-0.45 |
≤0.03 |
≤0.03 |
0.5-0.8 |
4.5-5.5 |
0.17-0.37 |
≤0.3 |
0.4-0.6 |
1.2-1.6 |
Chemical composition is not verified by NTD. Total verified brands for chemical compounds: 2906 of 3316.
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d5, % |
Brinell hardness number, MPa |
HRC |
| Forging cross-sections up to 400 mm. two-fold vacation at 550-560 °C, cooling with the furnace |
| ≥1500 |
≥1600 |
≥7 |
- |
45-53 |
| ≥1250 |
≥1400 |
≥7 |
- |
- |
| ≥1150 |
≥1300 |
≥7 |
- |
- |
| Forging cross-sections up to 400 mm. Normalization at 990-1010 °C, air cooling + Double holiday at 550-580 °C, elpidina with oven |
| ≥1300 |
≥1400 |
≥7 |
388-444 |
- |
| ≥1050 |
≥1200 |
≥8 |
- |
- |
| ≥1000 |
≥1150 |
≥8 |
- |
- |
Description mechanical marks
| Name |
Description |
| 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 |
| HRC |
Rockwell hardness (indenter diamond spheroconical) |
Technological properties
| Name |
The value |
| Weldability |
Steel difficult weldability. |
| Propensity to temper brittleness |
Malosolone. |
| Forging temperature |
Start - 1200 °C, the end of - 900 °C. |
| Flock-sensitive sensitivity |
Insensitive. |
