Steel АЦ18ХН2Т

Designation

Name	The value
Designation GOST Cyrillic	АЦ18ХН2Т
Designation GOST Latin	ATs18XH2T
Transliteration	ATs18HN2T
By chemical elements	-

Description

АЦ18ХН2Т steel is used: for the production of bars intended for the manufacture of automotive components by hot stamping.

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	0.13-0.19	≤0.035	≤0.035	0.4-0.7	0.4-0.7	0.17-0.37	1.6-2	Rest	≤0.3	0.08-0.15	0.03-0.09

Fe is the basis.
According to TU 14-1-3283-81, chemical analysis is given for steel grade АЦ18ХН2Т. 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: for carbon ± 0.010%, for manganese ± 0.020%, for silicon ± 0.020%, for chromium ± 0.020%, for titanium ± 0.020%, for 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
Образец 15х15	≥490	≥690	≥11	≥50	≥880

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 in the normalized condition. Temperature normalization of bars 860-880 °C.