Steel 76ВТ (М76ВТ)

Designation

Name	The value
Designation GOST Cyrillic	76ВТ
Designation GOST Latin	76BT
Transliteration	76VT
By chemical elements	76WTi

Name	The value
Designation GOST Cyrillic	М76ВТ
Designation GOST Latin	M76BT
Transliteration	M76VT
By chemical elements	Mo76WTi

Description

76ВТ steel is used: for the manufacture of railway rails R65 and R75 types.

Note

М76ВТ — steel open-hearth rail with titanium and vanadium.

Standards

Name	Code	Standards
Rails. Lining. Lining. Crutches	В42	GOST 8161-75, GOST 16210-77, GOST 18267-82, GOST 24182-80

Chemical composition

Standard	C	S	P	Mn	Si	Fe	V	Ti
GOST 24182-80	0.71-0.82	≤0.045	≤0.035	0.75-1.05	0.18-0.4	Rest	0.01-0.02	0.005-0.025

Fe is the basis.
In rails made of Kerch ores, the content of phosphorus is not more than 0.040%, sulfur is not more than 0.050%, arsenic is not more than 0.15%.
The rails of group I must be made of calm open-hearth steel, deoxidized in the ladle by complex deoxidizers without the use of aluminum or other deoxidizers, which form harmful non-metallic inclusions in steel.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²	HB, MPa
The mechanical properties of rails type R65 and R75 GOST 18267-82. Bulk quenching in oil + Furnace vacation
	≥794	≥1176	≥6	≥25	≥245	341-388
Mechanical properties of steel for rails type R65 and R75 GOST 24182-80 on delivery
	-	≥900	≥4	-	-	-

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number