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Steel 50KHGFA

Designation

Name The value
Designation GOST Cyrillic 50ХГФА
Designation GOST Latin 50XGFA
Transliteration 50HGFA
The 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
Sectional and shaped rolling 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
Tapes 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 The rest ≤0.2 0.15-0.25
Fe is the basis.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, 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
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
y The relative narrowing

Technological properties

Name The value
Weldability does not apply to welded structures
Propensity to temper brittleness malosana
Flock-sensitive sensitivity not sensitive

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