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Steel 60ХГ

Steel 45KhNM (45KhNMA) 4X2NMF steel Steel 55X Steel 60Kh2SMF Steel 60CrNiG 60KhN steel 75XM steel Steel 75KhSMF 7X2SMF steel Steel 90KhMF Steel 9Х2МФ (9Х2МФА)

Designation

Name The value
Designation GOST Cyrillic 60ХГ
Designation GOST Latin 60XG
Transliteration 60HG
The chemical elements 60CrMn

Description

60ХГ steel is used: for the manufacture of work rolls shtripsovyh and small-section mill for hot rolling of metals.

Chemical composition

Standard C S P Mn Cr Si Ni Fe
0.55-0.65 ≤0.04 ≤0.04 0.8-1 1-1.3 0.17-0.37 ≤0.4 The rest
Fe is the basis.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa HRC
Barrel rolls for rail and structural steel and long products mills in the state of delivery
500 - - - - - 255-302 -
Rolls diameter up to 600 mm. Fit in the oven at 650 °C (exposure 4 h), the heating rate 100 °C/h to 820-860 °C (exposure 4 h), air cooling to 400 °C, then oven to 360 °With (extract 10 h), the heating rate 100 °C/h to 630-660 °C (aging for 50 h), cooling at 40 °C/h to 400 °C then with 15 °C/h up to 120 °C (exposure 4 h), air cooling (named place of cutting out of samples)
- 460-520 810-900 15-18 30-38 240-390 229-255 -
Barrel rolls for rail and structural steel and long products mills in the state of delivery
950 - - - - - 229-285 -
Rolls diameter up to 600 mm. Fit in the oven at 650 °C (exposure 4 h), the heating rate 100 °C/h to 820-860 °C (exposure 4 h), air cooling to 400 °C, then oven to 360 °With (extract 10 h), the heating rate 100 °C/h to 630-660 °C (aging for 50 h), cooling at 40 °C/h to 400 °C then with 15 °C/h up to 120 °C (exposure 4 h), air cooling (named place of cutting out of samples)
- 510-550 860-910 15-17 32-36 270-290 241-255 -
Rolls supplied
600 440-550 800-910 ≥18 ≥38 ≥350 - -
Rolls diameter up to 600 mm. Fit in the oven at 650 °C (exposure 4 h), the heating rate 100 °C/h to 820-860 °C (exposure 4 h), air cooling to 400 °C, then oven to 360 °With (extract 10 h), the heating rate 100 °C/h to 630-660 °C (aging for 50 h), cooling at 40 °C/h to 400 °C then with 15 °C/h up to 120 °C (exposure 4 h), air cooling (named place of cutting out of samples)
- 440-550 800-910 15-20 36-41 270-440 229-255 -
- 430-540 810-920 12-18 28-36 240-340 229-255 -
Rolls mills. Surface hardening with heating HDTV + Low vacation + Cooling
- - - - - - - 51-63
Rolls with a diameter of 600 mm. SV Fit in the oven at 630-660 °C (exposure 8 h), air cooling to 330-360 °C, heating rate of 100 °C/h to 820-860 °C (exposure 4 h), air cooling to 330-360 °C (exposure 6 h), the heating rate 100 °C/h to 630-660 °C (extract 40-50 h), air cooling (named place of cutting out of samples)
- 390-580 710-950 14-21 28-51 150-590 207-269 -
Rolls mills. Surface hardening with heating HDTV + Low vacation + Cooling
- - - - - - - 42-57
Rolls with a diameter of 600 mm. SV Fit in the oven at 630-660 °C (exposure 8 h), air cooling to 330-360 °C, heating rate of 100 °C/h to 820-860 °C (exposure 4 h), air cooling to 330-360 °C (exposure 6 h), the heating rate 100 °C/h to 630-660 °C (extract 40-50 h), air cooling (named place of cutting out of samples)
- 390-580 710-940 14-20 28-52 180-590 207-255 -
- ≥450 ≥840 ≥15 ≥23 ≥160 ≥241 -

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 Beginning - 1220 °C, the end - of 800 °C. the cross Sections up to 200 mm are cooled in the pit, 201-800 mm is subjected to annealing by recrystallization and single hypothermia.
Flock-sensitive sensitivity Sensitive.
Workability by cutting In the normalized and tempered condition at NV 235-285 and blower SB=670 MPa Kn TV.SPL.=0,9 Kn b.St.=0,75.

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