Designation
Name |
The value |
Designation GOST Cyrillic |
12ХГДАФ |
Designation GOST Latin |
12XGDAF |
Transliteration |
12HGDAF |
By chemical elements |
12CrMnCuNV |
Description
12ХГДАФ steel is used: for the manufacture of welded offshore steel structures.
Standards
Name |
Code |
Standards |
Sheets and strips |
В33 |
TU 14-1-4329-87, TU 14-1-4685-89, TU 14-1-5241-93 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Fe |
Cu |
N |
V |
TU 14-1-5241-93 |
0.09-0.15 |
≤0.03 |
≤0.03 |
0.6-1 |
0.8-1.1 |
0.17-0.37 |
Rest |
0.25-0.5 |
0.02-0.03 |
0.07-0.12 |
Fe is the basis.
Mechanical properties
Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
Rolled plates as supplied by TU 14-1-5241-93, THE 14-1-4685-89 (samples transverse) |
30-50 |
≥325 |
≥470 |
≥20 |
8-30 |
≥345 |
≥490 |
≥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 |
Without restrictions. |