E⋅109
MPa
σU
MPa
σP
MPa
ψ

60S2HA (60С2ХАА, 60C2X)

For the manufacture of large high-loaded springs and springs for responsible purposes.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Structural steel	Spring-spring structural steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	P, %	C, %	S, %
GOST 14959-79	95.36–96.94	1.4–1.8	0.4–0.7	0.7–1	< 0.2	< 0.25	< 0.025	0.56–0.64	< 0.025

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Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$
20	1.96

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Steel	GOST 14959-79				1470	1325	25	6	Tempering 870 ° C, oil, leave 470 ° C

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Hire	GOST 14959-79	raw	321
Hire	GOST 14959-79	heat-treated	285

Technological Properties

Weldability	Flake Susceptibility	Propensity to temper brittleness
Weldability	Flake Susceptibility	Propensity to temper brittleness
Not applicable for welded structures	not sensitive	not inclined

Critical point temperatures

Ac₁, K	Ac₃(Ac_m), K	Ar₁, K
Ac₁, K	Ac₃(Ac_m), K	Ar₁, K
765	780	700

Analogues

USA	Germany	European Union
USA	Germany	European Union
G92540	1.7108 (60SiCr7)	54SiCr6

Standards

Standard	Description
Standard	Description
GOST 14959-79

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$E\cdot 10^{9}$	$MPa$	Elastic modulus

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\sigma_{P}$	$MPa$	Proportionality limit
$\psi$	%	Reduction in cross section on fracture

Designation of types of weldability

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
no limits		Welding is performed without heating and without subsequent heat treatment
Boundedly welded		Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld		For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures

Description of temperatures of critical points

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
Ac₁	K
Ac₃(Ac_m)	K
Ar₁	K