Designation
| Name |
The value |
| Designation GOST Cyrillic |
07ГФБ |
| Designation GOST Latin |
07GFB |
| Transliteration |
07GFB |
| By chemical elements |
07MnVNb |
| Name |
The value |
| Designation GOST Cyrillic |
07ГФБ-У |
| Designation GOST Latin |
07GFB-U |
| Transliteration |
07GFB-U |
| By chemical elements |
07MnVNb-C |
Description
07ГФБ steel is used: for the manufacture of electrowelded pryamoshovny pipes of strength group K54 for the construction of gas pipelines, oil pipelines and oil product pipelines, resistant to hydrogen sulfide cracking.
Note
Steel low alloy manganese vanadium with niobium.
Standards
| Name |
Code |
Standards |
| Bars and shapes |
В22 |
GOST 19281-2014 |
| Sheets and strips |
В33 |
TU 14-1-4625-89 |
| Steel pipes and fittings to them |
В62 |
TU 14-158-146-2004 |
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
| Longitudinal electric-welded pipes of oil and gas in the state of delivery on the other 14-158-146-2004 (samples transverse; column cross section - outer diameter. wall thickness) |
| 530, 720, 820 (7-12) |
≥380 |
≥530 |
≥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 |
Technological properties
| Name |
The value |
| Weldability |
Welded without any restrictions. |
