Designation
| Name |
The value |
| Designation GOST Cyrillic |
02Х21Н25М5ДБ |
| Designation GOST Latin |
02X21H25M5DB |
| Transliteration |
02H21N25M5DB |
| By chemical elements |
02Cr21Н25Mo5CuNb |
| Name |
The value |
| Designation GOST Cyrillic |
ЭК5 |
| Designation GOST Latin |
EK5 |
| Transliteration |
EhK5 |
| By chemical elements |
- |
Description
02Х21Н25М5ДБ steel is used: for the production of parts of equipment operating in corrosive environments contaminated with chlorides and fluorides at pH=1 and the operating temperature up to +80 °C.
Note
High-alloy chromium-Nickel corrosion-resistant steel.
Standards
| Name |
Code |
Standards |
| Sheets and strips |
В33 |
TU 14-1-3230-81 |
| Blanks. Of the workpiece. Slabs |
В31 |
TU 14-1-3327-82 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Mo |
Nb |
| TU 14-1-3230-81 |
≤0.02 |
≤0.02 |
≤0.02 |
1-1.5 |
20-22 |
≤0.2 |
24-26 |
Rest |
1.2-1.8 |
4-5 |
0.2-0.4 |
Fe is the basis.
Technological properties
| Name |
The value |
| Weldability |
Welded without any restrictions. |
| Склонность к отпускной хрупкости |
Tend not. |
| Flock-sensitive sensitivity |
not sensitive. |
