M74T (Steel 74T)

for the manufacture of railway rails P50

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Ti, % P, % C, % S, %
GOST Р 51685-2000 97.645–98.373 0.18–0.4 0.75–1.05 0.007–0.025 < 0.035 0.69–0.8 < 0.045

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Alloy GOST 24182-80 860 5

Standards

Standard Description
GOST Р 51685-2000

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Ti % Titan
P % Phosphorus
C % Carbon
S % Sulfur

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)