in Dnipro

Mülheim an der Ruhr
Dnieper
Kiev

Steel 50KHGFA

Designation

Name	The value
Designation GOST Cyrillic	50ХГФА
Designation GOST Latin	50XGFA
Transliteration	50HGFA
By chemical elements	50CrMnV

Description

50KHGFA steel is used: for the manufacture of springs critical purpose of the springs of the vehicles.

Note

Steel spring alloy of high quality.

Standards

Name	Code	Standards
Bars and shapes	В32	GOST 14959-79, TU 14-1-2118-77, TU 14-1-440-72, TU 14-11-245-88, TU 14-136-367-2008
Steel wire medium and high carbon	В72	GOST 26366-84
Tape	В34	TU 14-101-134-2002, TU 1231-039-07528141-2002, TU 1231-037-07528141-2002, TU 1231-052-07528141-2004

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	V
GOST 14959-79	0.48-0.55	≤0.025	≤0.025	0.8-1	0.95-1.2	0.17-0.37	≤0.25	Rest	≤0.2	0.15-0.25

Fe is the basis.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %
Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Quenching in oil from 850 °C + Vacation at 470 °C
	≥1325	≥1420	≥6	≥35

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

Technological properties

Name	The value
Weldability	does not apply to welded structures
Склонность к отпускной хрупкости	malosana
Flock-sensitive sensitivity	not sensitive