Designation
Name |
The value |
Designation GOST Cyrillic |
30ХГ1 |
Designation GOST Latin |
30XG1 |
Transliteration |
30HG1 |
By chemical elements |
30CrMn1 |
Description
30KHG1 steel is used: for the manufacture of castings to various industrial purpose.
Standards
Name |
Code |
Standards |
Steel castings |
В82 |
GOST 977-88 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Fe |
V |
B |
Mo |
GOST 977-88 |
0.25-0.32 |
≤0.025 |
≤0.03 |
1.4-1.8 |
0.5-1 |
0.4-0.6 |
Rest |
0.2-0.4 |
0.006-0.01 |
0.4-0.6 |
Fe is the basis.
Mechanical properties
Section, mm |
sT|s0,2, MPa |
σU, MPa |
d |
y, % |
KCU, kJ/m2 |
Annealing in air with 870-890 °C + vacation at 220-280 °C, air cooling |
100 |
≥932 |
≥1275 |
≥2 |
≥4 |
≥147 |
Normalization at 910-960 °C, air cooling |
100 |
≥638 |
≥981 |
≥4 |
≥5 |
≥49 |
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 |
d |
Elongation after rupture |
y |
The relative narrowing |
KCU |
Toughness |