Steel 60S2G

Designation

Name	The value
Designation GOST Cyrillic	60С2Г
Designation GOST Latin	60C2G
Transliteration	60S2G
By chemical elements	60С2Mn

Description

Steel 60S2G used: for the manufacture of automobile and tractor carriage springs, springs of rolling stock of railway transport.

Note

Steel spring alloy quality.

Standards

Name	Code	Standards
Bars and shapes	В32	GOST 14959-79, TU 14-1-5416-2001, TU 14-1-5342-97, TU 14-1-1585-75, TU 14-1-1979-77, TU 14-1-2118-77, TU 14-1-916-74, TU 14-11-245-88, TU 14-1-2600-79, TU 14-136-367-2008
Steel wire medium and high carbon	В72	GOST 26366-84
Blanks. Of the workpiece. Slabs	В31	TU 14-1-993-74

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu
TU 14-1-993-74	0.55-0.65	≤0.035	≤0.035	0.7-1	≤0.3	1.8-2.2	≤0.3	Rest	≤0.25
GOST 14959-79	0.55-0.65	≤0.035	≤0.035	0.7-1	≤0.3	1.8-2.2	≤0.25	Rest	≤0.2

Fe is the basis.
According to GOST 14959-79, the total mass fraction of S + P ≤ 0.060%.
According to TU 14-1-993-74, the chemical composition is given for steel grade 60С2Г. The total mass fraction of S + P ≤ 0.060%. Permissible deviations from the norms for chemical composition: for manganese ± 0.030%, for silicon ± 0.050%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %
Rolled steel according to GOST 14959-79. 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

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
y	The relative narrowing

Technological properties

Name	The value
Macrostructure and pollution	The macrostructure of the steel when checking on the etched transverse templeto should not have shrinkage looseness, blistering, delamination, cracks, inclusions and placenow.
Microstructure	Harvesting on the other 14-1-993-74 should be supplied with a grain size not larger than 5 rooms, allowed the presence of small quantities of grains the 3. Depth bezoperatsionnogo layer in the workpiece (ferrite + transition zone) must not exceed 1.5% per side.