Steel АЦ30ХМ

Designation

Name The value
Designation GOST Cyrillic АЦ30ХМ
Designation GOST Latin ATs30XM
Transliteration ATs30HM
By chemical elements -

Description

АЦ30ХМ 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 Mo Ca
TU 14-1-3283-81 0.26-0.34 0.035-0.06 ≤0.035 0.4-0.7 0.8-1.1 0.17-0.37 ≤0.3 Rest ≤0.3 0.15-0.25 0.03-0.09
Fe is the basis.
According to TU 14-1-3283-81 chemical analysis is given for steel grade AC30XM. 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%, titanium to 0.030% and vanadium to 0.050% is not a defective feature. In the finished bars, subject to the requirements of technical specifications, deviations in chemical composition are allowed: carbon ± 0.010%, manganese ± 0.020%, silicon ± 0.020%, chromium ± 0.020%, molybdenum ± 0.020%, nickel -0.050% , sulfur and phosphorus +0.0050% each.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Bars on the other 14-1-3283-81
Образец 15х15 ≥735 ≥930 ≥11 ≥45 ≥780

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU 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 ≤229НВ.