Steel АСЦ30ХМ
Designation
| Name |
The value |
| Designation GOST Cyrillic |
АСЦ30ХМ |
| Designation GOST Latin |
ACTs30XM |
| Transliteration |
ASTs30HM |
| The 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 |
| Sectional and shaped rolling |
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 |
The 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 characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
| 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 |
| 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 |
| kJ/m2 |
Toughness |
Technological properties
| Name |
The value |
| Macrostructure and contamination |
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. |
| Features of production |
Bars on the other 14-1-2588-78 are supplied after annealing with the hardness 146-223 NV. |
