E⋅109
MPa
α⋅106
K−1
ρ
kgm3
σU
MPa
σP
MPa
ψ
KCU⋅103
Jm2

SHH15SG

Substitute: HVG, ShH15, 9HS, HVSG

Large ring ball and roller bearings with a wall thickness of 20−30 mm balls with a diameter more than 50 mm; rollers with a diameter of over 35 mm.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Structural steel	Bearing structural steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	P, %	C, %	S, %	O, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	P, %	C, %	S, %	O, %
GOST 801-78	> 94.8415	0.4–0.65	0.9–1.2	1.3–1.65	< 0.01	< 0.25	< 0.3	< 0.027	0.95–1.05	< 0.02	< 0.0015

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Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\rho$ , $\frac{kg}{m^3}$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\rho$ , $\frac{kg}{m^3}$
20	2.11		7650
200		13.4
300		13.6

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	d5, %	Treatment
Steel	GOST 801-78			annealing	590–730	370–410	45	440	20	Annealing 790-810 ° C, furnace cooled, 15 ° C / h

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Rental hot rolled.	GOST 801-78	hot rolling	179–217

Technological Properties

Flake Susceptibility	Propensity to temper brittleness
Flake Susceptibility	Propensity to temper brittleness
sensitive	inclined

Critical point temperatures

Ac₁, K	Ac₃(Ac_m), K	Ar₁, K	Mn, K
Ac₁, K	Ac₃(Ac_m), K	Ar₁, K	Mn, K
750	910	688	205

Analogues

USA	Germany
USA	Germany
K19195	1.3520 (100CrMn6)

Standards

Standard	Description
Standard	Description
GOST 801-78

Description of chemical elements

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

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$E\cdot 10^{9}$	$MPa$	Elastic modulus
$\alpha\cdot 10^{6}$	$K^{-1}$	Coefficient of thermal (linear) expansion (range 20°C–T)
$\rho$	$\frac{kg}{m^3}$	The density of the material

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
$KCU\cdot 10^{3}$	$\frac{J}{m^2}$	Impact toughness

Description of temperatures of critical points

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