Steel АСЦ30ХМ

Designation

Name The value
Designation GOST Cyrillic АСЦ30ХМ
Designation GOST Latin ACTs30XM
Transliteration ASTs30HM
By chemical elements -

Description

АСЦ30ХМ steel is used: for the manufacture of fasteners (bolts, nuts); stressed parts in the automobile and tractor industry (worms steering).

Note

Alloy structural steel.

Standards

Name Code Standards
Bars and shapes В32 TU 14-1-2588-78

Chemical composition

Standard C S P Mn Cr Si Ni Fe Mo Pb Ca
TU 14-1-2588-78 0.27-0.33 0.03-0.07 ≤0.035 0.5-0.8 0.8-1.1 0.17-0.37 ≤0.3 Rest 0.15-0.25 0.15-0.3 ≥0.06
Fe is the basis.
According to TU 14-1-2588-78, the calcium content is calculated. In finished rolled products, the calcium content is guaranteed by the production technology and should not be less than 0.0010%. In the finished rolled products, deviations in chemical composition are allowed with respect to all specifications of the technical specification: carbon ± 0.010%, silicon ± 0.020%, manganese ± 0.020%, chromium -0.020 / + 0.050%, nickel ± 0.030%, molybdenum - 0.010 / + 0.020%, for sulfur ± 0.0050%, for phosphorus + 0.5050%, for lead -0.020%.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
Bars hot rolled, turned on the other 14-1-2588-78. Quenching in oil with 860-880 °C + Vacation at 520-570 °C, air cooling
≥736 ≥883 ≥12 ≥981

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
KCU Toughness

Technological properties

Name The value
Macrostructure and pollution In the macrostructure of steel on the other 14-1-2588-78 should not be shrinkage porosity, foreign inclusions and slag. Exudation square should not exceed 2 points and Pousada liquation - 1 points.
Microstructure The size of austenitic grain in the steel in the delivery state on the other 14-1-2588-78 must be at least 5 numbers according to GOST 5639. The microstructure of the steel after heat treatment, must be ferrite-pearlite and to meet agreed-upon standards for steel grade AS30KHM.
Particularities of production of goods Bars on the other 14-1-2588-78 are supplied after annealing with the hardness 146-223 NV.