Steel 45T (45СТ)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
45Т |
| Designation GOST Latin |
45T |
| Transliteration |
45T |
| The chemical elements |
45Ti |
| Name |
The value |
| Designation GOST Cyrillic |
45СТ |
| Designation GOST Latin |
45CT |
| Transliteration |
45ST |
| The chemical elements |
45СTi |
Description
45T steel is used: for the manufacture of seamless casing pipes.
Standards
| Name |
Code |
Standards |
| Bulls. Blanks. Slabs |
В31 |
TU 14-1-3280-81 |
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
| Tubular billet with a diameter of 80 mm on the other 14-1-3280-81. Normalization at 860±20 °C (in the column of the delivery condition specified by the execution group of billets) |
| 379-551 |
≥655 |
≥14 |
- |
- |
| ≥372 |
≥637 |
≥16 |
≥40 |
≥390 |
Description mechanical marks
| Name |
Description |
| 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 |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |
Technological properties
| Name |
The value |
| Features of production |
Tubular billet on the other 14-1-3280-81 casing comes only category II controlled mechanical properties. |
