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
CIS, Russia, Ukraine	Structural steel	Bearing structural steel

Chemical composition

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	$$E\cdot 10^{9}$$, $$MPa$$	$$\alpha\cdot 10^{6}$$, $$K^{-1}$$	$$\rho$$, $$\frac{kg}{m^3}$$
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
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
Rental hot rolled.	GOST 801-78	hot rolling	179–217

Technological Properties

Flake Susceptibility	Propensity to temper brittleness
sensitive	inclined

Critical point temperatures

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

Analogues

USA	Germany
K19195	1.3520 (100CrMn6)

Standards

Standard	Description
GOST 801-78

Description of chemical elements

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
$$E\cdot 10^{9}$$	$$MPa$$	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
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
Ac₁	K
Ac₃(Ac_m)	K
Ar₁	K
Mn	K