Designation
| Name |
The value |
| Designation GOST Cyrillic |
03Х20Ю3НТБ |
| Designation GOST Latin |
03X20Ju3HTB |
| Transliteration |
03H20Yu3NTB |
| By chemical elements |
03Cr20Al3НTiNb |
| Name |
The value |
| Designation GOST Cyrillic |
КО-4 |
| Designation GOST Latin |
KO-4 |
| Transliteration |
KO-4 |
| By chemical elements |
CoО-4 |
Description
03Х20Ю3НТБ steel is used: for the manufacture of lightly parts, boilers, nozzles, burners, screens, operating at temperatures up to +1100−1150 °C.
Note
Analogue steel 15KH25T, but with improved weldability.
Standards
| Name |
Code |
Standards |
| Sheets and strips |
В33 |
TU 14-1-4645-89 |
