ρ
kgm3
σU
MPa

operating system

for the production of rolled billets of square or circular cross-section designed for the production of axles of locomotives, electric trains, diesel and electric trains, cars and railway carriages underground railways of 1520 mm track

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Steels for special purposes	Steel for rail transport

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	P, %	C, %	S, %
GOST 4728-96	97.32–98.83	0.15–0.35	0.6–0.9	< 0.3	< 0.25	< 0.3	< 0.04	0.42–0.5	< 0.04

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Physical characteristics

Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
20	7850

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	d5, %	Treatment
Workpiece	GOST 4728-96				580–650	18–20

Standards

Standard	Description
Standard	Description
GOST 4728-96

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
$\rho$	$\frac{kg}{m^3}$	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