Steel 3

Designation

Name	The value
Designation GOST Cyrillic	3
Designation GOST Latin	3
Transliteration	3
By chemical elements	3

Description

Steel 3 is used: for the manufacture of tires of trucks and shunting locomotives and tenders Railways of 1520 mm (used only by agreement between manufacturer and consumer).

Note

Steel bandage.
The steel must be subjected to secondary treatment by blowing nitrogen, argon or vacuum.

Standards

Name	Code	Standards
Bandages. Wheels. Axis	В41	GOST 398-96, GOST 3225-80, GOST 5000-83, GOST Р 52366-2005

Chemical composition

Standard	C	S	P	Mn	Si	Fe	V
GOST 398-96	0.6-0.68	≤0.04	≤0.035	0.6-0.9	0.22-0.45	Rest	0.06-0.15

Fe is the basis.
According to GOST 398-96, the content of molybdenum is not more than 0.08%, nickel is not more than 0.25%, chromium is not more than 0.20%, copper is not more than 0.30%. The total content of sulfur and phosphorus should not be more than 0.065%. The total content of chromium, nickel and copper should be at least 0.30%. In the finished tires, the maximum deviations in chemical composition are allowed in accordance with the requirements of GOST 380.

Mechanical properties

Section, mm	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²	HB, MPa
Bandages according to GOST 398-96. Sakazakii with separate heating + Vacation
	1000-1270	≥8	≥12	≥196	≥275

Description mechanical marks

Name	Description
σ_U	Limit short-term strength
d₅	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number