Steel АЦ25ХГТ

Designation

Name	The value
Designation GOST Cyrillic	АЦ25ХГТ
Designation GOST Latin	ATs25XGT
Transliteration	ATs25HGT
By 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
Bars and shapes	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	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 properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²
Bars on the other 14-1-3283-81
	≥980	≥1270	≥10	≥50	≥690
	≥1080	≥1470	≥9	≥45	≥590

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
KCU	Toughness

Technological properties

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