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Steel АЦ25ХГТ

Designation

Name The value
Designation GOST Cyrillic АЦ25ХГТ
Designation GOST Latin ATs25XGT
Transliteration ATs25HGT
The chemical elements -

Description

АЦ25ХГТ steel is used: for the production of bars intended for the manufacture of automotive components by hot forming with subsequent machining.

Note

Calcium-containing steel of high machinability.

Standards

Name Code Standards
Sectional and shaped rolling В32 TU 14-1-3283-81

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Ti Ca
TU 14-1-3283-81 0.22-0.29 0.035-0.06 ≤0.035 0.8-1.1 1-1.3 0.17-0.37 ≤0.3 The rest ≤0.3 0.03-0.09 0.03-0.09
Fe is the basis.
According to TU 14-1-3283-81, chemical analysis is given for steel grade AC25HGT. In the designation of steel letters mean: A - automatic, C - calcium. The microalloying of calcium steel is carried out by silicocalcium and other calcium alloys at the rate of introduction of 0.030-0.090% calcium into a liquid metal. The mass fraction of calcium is not determined by chemical analysis. The presence of tungsten to 0.20%, molybdenum to 0.15% and vanadium to 0.050% is not a defect. In the finished bars, subject to the requirements of technical specifications, deviations in chemical composition are allowed: by carbon ± 0.010%, manganese ± 0.020%, silicon ± 0.020%, chromium ± 0.050%, titanium ± 0.020%, nickel -0.050% , sulfur and phosphorus +0.0050% each.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2
Bars on the other 14-1-3283-81
≥980 ≥1270 ≥10 ≥50 ≥690
≥1080 ≥1470 ≥9 ≥45 ≥590

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

Technological properties

Name The value
Features of production Bars on the other 14-1-3283-81 are supplied with heat treatment (after annealing or high tempering), hardness ≤217НВ.

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