M73TS (73C Steel)

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

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

Standard	Fe, %	Si, %	Mn, %	Zr, %	P, %	C, %	S, %
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

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

Standard	Description
Standard	Description
GOST 9960 - 85