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Steel AS20KHGNM

Designation

Name The value
Designation GOST Cyrillic АС20ХГНМ
Designation GOST Latin AC20XGHM
Transliteration AS20HGNM
The chemical elements -

Description

AS20KHGNM steel is used: for the manufacture of automotive components (gear synchromesh transmission input shaft).

Note

Lead-containing alloy steel high machinability.

Standards

Name Code Standards
Sectional and shaped rolling В32 GOST 1414-75, GOST 14955-77, TU 14-1-2217-92

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Mo Pb
GOST 1414-75 0.18-0.23 ≤0.035 ≤0.035 0.7-1.1 0.4-0.7 0.17-0.37 0.4-0.7 The rest ≤0.3 0.15-0.25 0.15-0.3
Fe is the basis.
According to GOST 1414-75, the total mass fraction of sulfur and phosphorus should not exceed 0.060%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % kJ/m2, кДж/м2
Bars up to 100 mm. Quenching in water or oil with 850-870 °C + Vacation at 150-180 °C, air cooling
15 ≥930 ≥1180 ≥7 ≥588

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
kJ/m2 Toughness

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