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Steel 60С2Х (60S2KHA; 60С2ХАА)

Designation

Name The value
Designation GOST Cyrillic 60С2Х
Designation GOST Latin 60C2X
Transliteration 60S2H
The chemical elements 60С2Cr
Name The value
Designation GOST Cyrillic 60С2ХА
Designation GOST Latin 60C2XA
Transliteration 60S2HA
The chemical elements 60С2Cr
Name The value
Designation GOST Cyrillic 60С2ХАА
Designation GOST Latin 60C2XAA
Transliteration 60S2HAA
The chemical elements 60С2CrN

Description

60С2Х steel is used: for the manufacture of hot rolled plates; large high-loaded springs and leaf springs for critical applications.

Note

Steel spring alloy of high quality.

Standards

Name Code Standards
Sheets and stripes В23 GOST 103-2006
Sectional and shaped rolling В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Steel wire medium- and high-carbon В72 GOST 26366-84
Sheets and stripes В33 GOST 4405-75, TU 14-1-1409-75, TU 14-1-4271-87, TU 302.02.040-89
Sectional and shaped rolling В32 GOST 7417-75, GOST 7419-90, GOST 8559-75, GOST 8560-78, GOST 14955-77, GOST 14959-79, TU 3-757-83, TU 14-1-2118-77, TU 14-1-3493-82, TU 14-136-327-88, TU 14-11-245-88, TU 14-136-367-2008

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 14959-79 0.56-0.64 ≤0.025 ≤0.025 0.4-0.7 0.7-1 1.4-1.8 ≤0.25 The rest ≤0.2
Fe is the basis.
According to GOST 14959-79 the chemical composition is given for steel grade 60С2ХА.

Mechanical characteristics

Section, mm t отпуска, °C sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa HRC
Rolled sheet. Isothermal annealing with a hold at 290 °C
≤60 - ≥1720 ≥1950 ≥10 ≥46 ≥716 - -
Rolled steel. Quenching in oil with 880-890 °C + Vacation
- 200 - - - - ≥226 - ≥59
Rolled sheet. Isothermal annealing with a hold at 290 °C + Vacation at 325 °C
≤60 - ≥1760 ≥1920 ≥8 ≥45 ≥490 - -
Rolled steel. Quenching in oil with 880-890 °C + Vacation
- 250 ≥2270 ≥2380 - ≥28 ≥265 - ≥58
- 300 ≥2210 ≥2340 ≥6 ≥26 ≥255 - ≥58
Spring. Annealing at 860 °C, hot coiling at 850-890 °C. Quenching in oil with 850-870 °C + Vacation at 400-420 °C
- - - - - - - 420-475 -
Rolled steel. Quenching in oil from 870 °C to + Leave at 420 °C, cooling in oil
15-30 - ≥1570 ≥1760 ≥5 ≥20 ≥285 - -
Rolled steel. Quenching in oil with 880-890 °C + Vacation
- 350 ≥2020 ≥2240 ≥8 ≥26 ≥226 - ≥57
Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Quenching in oil from 870 °C to + vacation at 470 °C
- ≥1325 ≥1470 ≥6 ≥25 - - -
Rolled steel. Quenching in oil with 880-890 °C + Vacation
- 400 ≥1830 ≥1990 ≥8 ≥38 ≥363 - ≥52
- 450 ≥1600 ≥1730 ≥9 ≥39 ≥520 - ≥48
- 500 ≥1400 ≥1530 ≥10 ≥38 ≥461 - ≥44
- 550 ≥1240 ≥1380 ≥10 ≥38 ≥589 - ≥40

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)

Physical characteristics

Temperature Е, ГПа G, ГПа
0 196 78

A description of the physical symbols

Name Description
Е The normal elasticity modulus
G Modulus of elasticity shear torsion
r Density
l Coefficient of thermal conductivity
R UD. the resistivity

Technological properties

Name The value
Weldability does not apply to welded structures.
Propensity to temper brittleness tend not
Forging temperature Start - 1200 °C, the end - of 800 °C.
Flock-sensitive sensitivity not sensitive

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