Steel 5ХГМ
Designation
| Name |
The value |
| Designation GOST Cyrillic |
5ХГМ |
| Designation GOST Latin |
5XGM |
| Transliteration |
5HGM |
| The chemical elements |
5CrMnMo |
Description
Steel 5ХГМ applies: Molotov stamps vapor and pneumatic hammers with weight of falling parts up to 3 tons, forging dies for hot stamping, rolls of large, medium and small-section mills for rolling metal tverdogo.
Standards
| Name |
Code |
Standards |
| Sectional and shaped rolling |
В22 |
GOST 1133-71, GOST 2590-2006, GOST 2591-2006 |
| Sheets and stripes |
В33 |
GOST 4405-75 |
| Sectional and shaped rolling |
В32 |
GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-11-245-88 |
| Bulls. Blanks. Slabs |
В31 |
OST 24.952.01-89 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Cu |
Mo |
|
0.5-0.6 |
≤0.03 |
≤0.03 |
1.2-1.6 |
0.6-0.9 |
0.25-0.6 |
≤0.35 |
≤0.3 |
0.15-0.3 |
Chemical composition is not verified by NTD. Total verified brands for chemical compounds: 2906 of 3316.
Mechanical characteristics
| Section, mm |
t отпуска, °C |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
HRC |
| Rolling, forging. Quenching in oil with 820-850 °C + Vacation, air cooling |
| 100-300 |
490-520 |
- |
≥1420 |
≥10 |
- |
≥290 |
387-444 |
- |
| Billet with a diameter of 20 mm. Quenching in oil 840-860 °C + Vacation at 500-550 °C, air cooling |
| - |
- |
≥1030 |
≥1220 |
- |
≥31 |
≥590 |
≥360 |
- |
| Rolling, forging. Quenching in oil with 820-850 °C + Vacation, air cooling |
| 300-400 |
530-560 |
- |
≥1250 |
≥10 |
≥32 |
≥440 |
363-387 |
- |
| Billet with a diameter of 20 mm. Quenching in oil 840-860 °C + Vacation at 500-550 °C, air cooling |
| - |
- |
≥980 |
≥1180 |
≥12 |
≥48 |
≥640 |
≥330 |
- |
| Rolling, forging. Quenching in oil with 820-850 °C + Vacation, air cooling |
| 100 |
410-440 |
- |
≥1570 |
≥5 |
≥15 |
≥200 |
- |
44-48 |
| Billet with a diameter of 20 mm. Quenching in oil 840-860 °C + Vacation at 500-550 °C, air cooling |
| - |
- |
≥850 |
≥980 |
≥10 |
≥62 |
≥490 |
≥310 |
- |
| - |
- |
≥680 |
≥780 |
≥12 |
≥81 |
≥340 |
≥302 |
- |
| Rolled steel. Quenching in oil 840-860 °C + Vacation 440-460 °C (exposure 2 hours), air cooling |
| - |
- |
≥1450 |
≥1570 |
≥9 |
≥26 |
≥360 |
- |
≥47 |
| - |
- |
≥1080 |
≥1280 |
≥11 |
≥40 |
≥440 |
- |
≥37 |
| - |
- |
≥860 |
≥980 |
≥15 |
≥55 |
- |
- |
≥32 |
| - |
- |
≥390 |
≥700 |
≥25 |
≥80 |
≥400 |
- |
≥27 |
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 |
| HRC |
Rockwell hardness (indenter diamond spheroconical) |
Technological properties
| Name |
The value |
| Weldability |
Steel is not used for welded structures. |
| Propensity to temper brittleness |
Inclined. |
| Forging temperature |
Start - 1200 °C, the end - of 800 °C. the cross Sections up to 100 mm are cooled in air, 101-350 mm - in the pit. |
| Flock-sensitive sensitivity |
Sensitive. |
| Workability by cutting |
In hot-rolled condition, when blower SB 207 HB=900 MPa Kn TV.SPL.=0,6 Kn b.St.=0,3. |
