Steel 76В (М76В)

Designation

Name	The value
Designation GOST Cyrillic	76В
Designation GOST Latin	76B
Transliteration	76V
By chemical elements	76W

Name	The value
Designation GOST Cyrillic	М76В
Designation GOST Latin	M76B
Transliteration	M76V
By chemical elements	Mo76W

Description

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

Note

М76В — hearth rail steel with 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
GOST 24182-80	0.71-0.82	≤0.045	≤0.035	0.75-1.05	0.25-0.45	Rest	0.03-0.07

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