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Steel AS40KH

Steel AC35G2 AC20X steel Steel АЦ20ХГНМ Steel АЦ20ХН3 Steel АЦ25ХГТ AC30 steel AC30X steel АЦ30Х3МФ steel АЦ30ХМ steel AC35 steel Steel АЦ18ХН2Т AC35X steel АЦ38ХС steel AC40 steel Steel AC40G АЦ40Х steel AC45 steel Steel AC45G2 AC45X steel AC50 steel Steel AC50X AC20CrNiM steel A11 steel A12 steel A20 steel A30 steel A35 steel A40G steel AC12CrN steel AC14 steel AC14CrN steel AC19CrN steel AC20 steel AC30CrM steel AC35G2 steel AC38CrHm steel AC40 steel AC40X steel AC40CrNiM steel AC45G2 steel Steel ACS30CrM АЦ18ХГТ steel

Designation

Name The value
Designation GOST Cyrillic АС40Х
Designation GOST Latin AC40X
Transliteration AS40H
The chemical elements -

Description

AS40KH steel is used: for the manufacture of automotive components (rings axle passenger cars).

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 Pb
GOST 1414-75 0.36-0.44 ≤0.035 ≤0.035 0.6-0.9 0.8-1.1 0.17-0.37 ≤0.3 The rest ≤0.3 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, % y, % kJ/m2, кДж/м2
Bars up to 100 mm Quenching in oil with 845-875 °C + Vacation at 450-550 °C, cooling in water
25 ≥784 ≥980 ≥10 ≥45 ≥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
y The relative narrowing
kJ/m2 Toughness

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