Designation
| Name |
The value |
| Designation GOST Cyrillic |
47ГТ |
| Designation GOST Latin |
47GT |
| Transliteration |
47GT |
| By chemical elements |
47MnTi |
Description
Steel 47GT is used: for the manufacture of axles of vehicles.
Note
Structural steel high-quality manganese.
Standards
| Name |
Code |
Standards |
| Sheets and strips |
В23 |
GOST 103-2006 |
| Bars and shapes |
В22 |
GOST 1133-71, GOST 8319.0-75, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006 |
| Bars and shapes |
В32 |
GOST 4543-71, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-1-2118-77, TU 14-11-245-88, TU 14-136-367-2008 |
| Blanks. Of the workpiece. Slabs |
В31 |
OST 3-1686-90, TU 14-1-4944-90 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
V |
Ti |
Mo |
W |
| GOST 4543-71 |
0.44-0.52 |
≤0.035 |
≤0.035 |
0.9-1.2 |
≤0.3 |
0.1-0.22 |
≤0.3 |
Rest |
≤0.3 |
≤0.05 |
0.06-0.12 |
≤0.15 |
≤0.2 |
Fe is the basis.
According to GOST 4543-71 the content in high-quality steel is regulated: P≤0,025%; S≤0.025%; Сu≤0.30%; in high-grade steel: P≤0,025%; S≤0.015%; Сu≤0.25%.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
| Normalization at 820-870 °C, air cooling |
| ≤25 |
375-390 |
620-640 |
12-15 |
30-40 |
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 |
