Designation
| Name |
The value |
| Designation GOST Cyrillic |
30Т |
| Designation GOST Latin |
30T |
| Transliteration |
30T |
| By chemical elements |
30Ti |
Description
30T steel is used: for the manufacture of hot-rolled sheet metal used in various branches of engineering.
Note
Structural steel high quality versatile.
Standards
| Name |
Code |
Standards |
| Sheets and strips |
В33 |
TU 14-1-1097-74, TU 14-1-2390-78, TU 14-1-2685-79, TU 14-1-422-72, TU 14-1-917-74 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Ti |
| TU 14-1-2685-79 |
0.25-0.33 |
≤0.04 |
≤0.04 |
0.5-0.8 |
≤0.3 |
≤0.1 |
≤0.3 |
Rest |
0.08-0.015 |
Fe is the basis.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
| Thin hot-rolled sheet heat-treated in the delivery condition on the other 14-1-1097-74 (samples transverse) |
| ≤3 |
≥295 |
≥390 |
≥20 |
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 |
