Steel 5ХГМ

Designation

Name The value
Designation GOST Cyrillic 5ХГМ
Designation GOST Latin 5XGM
Transliteration 5HGM
By 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
Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and strips В33 GOST 4405-75
Bars and shapes В32 GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-11-245-88
Blanks. Of the workpiece. 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 properties

Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, 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
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
HB Brinell hardness number
HRC Rockwell hardness (indenter diamond spheroconical)

Technological properties

Name The value
Weldability Steel is not used for welded structures.
Склонность к отпускной хрупкости Inclined.
The temperature of forging 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.
Machinability In hot-rolled condition, when blower SB 207 HB=900 MPa Kn TV.SPL.=0,6 Kn b.St.=0,3.