Designation
| Name |
The value |
| Designation GOST Cyrillic |
14ХГНМДАФБРТ |
| Designation GOST Latin |
14XGHMDAFBPT |
| Transliteration |
14HGNMDAFBRT |
| By chemical elements |
14CrMnНMoCuNVNbBTi |
| Name |
The value |
| Designation GOST Cyrillic |
14ХГНМД |
| Designation GOST Latin |
14XGHMD |
| Transliteration |
14HGNMD |
| By chemical elements |
14CrMnНMoCu |
Description
14ХГНМДАФБРТ steel is used: for the manufacture of various forged and shtampovannyh loaded components and structures (truck bodies, weld assemblies of tower, jib self-propelled and self-propelled cranes, mast, climbing cranes, crane hoisting, cranes).
Note
Low-alloy steel.
Standards
| Name |
Code |
Standards |
| Sheets and strips |
В33 |
TU 14-1-2057-77 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
Al |
V |
B |
Ti |
Mo |
Nb |
| TU 14-1-2057-77 |
0.12-0.17 |
≤0.02 |
≤0.03 |
1.1-1.4 |
0.9-1.3 |
0.17-0.37 |
0.9-1.3 |
Rest |
0.6-0.9 |
0.02-0.03 |
0.05-0.1 |
0.1-0.2 |
0.04-0.06 |
0.03-0.08 |
0.2-0.3 |
0.03-0.06 |
Fe is the basis.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
| Sheet metal in delivery condition on the other 14-1-2057-77 |
|
≥785 |
≥850 |
≥12 |
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 |
For welding recommended welding electrodes Э70 API-2. The deposition rate of 9 g/Ah. |
