M73TS (73C Steel)

For the manufacture of rails Ostryakova types OR75, OR65, OR50, applied to the upper structure of railway track structures

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Zr, % P, % C, % S, %
GOST 9960 - 85 97.595–98.399 0.18–0.45 0.75–1.05 0.001–0.05 < 0.035 0.67–0.78 < 0.04

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ d5, % Treatment
Steel GOST 9960 - 85 900 5

Standards

Standard Description
GOST 9960 - 85

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength